Aqueous suspension of minerals and/or fillers and/or pigments, the way it is received and means for the manufacture and processing of paper, for wastewater treatment and pulp from harmful substances

 

(57) Abstract:

The use for the manufacture and processing of paper, for wastewater treatment and pulp from harmful substances. The invention is proposed aqueous suspension of minerals and / or fillers and/or pigments with a solids content of 60 wt.%, moreover, the mineral or the filler or pigment dispersed with one or more dispersing agents. Dispersing agent contains one or more amphoteric polyelectrolytes and/or cationic polyelectrolytes and/or amphoteric cationic polyelectrolytes and/or amphoteric anionic polyelectrolytes and/or partially neutralized amphoteric anionic polyelectrolytes, and particles of filler and/or pigment and/or mineral from the outside are neutral or positive charge. Method for obtaining aqueous suspension, in which part of the polyelectrolytes are added before grinding, the part in the grinding time and part - after grinding. Grinding and dispersing can be carried out in separate stages. 3 S. and 3 C.p. f-crystals. 27 table.

The invention relates to aqueous suspensions of minerals and/or fillers and/or pigments containing solid in the eh or pigment dispersed one or more dispersing agents.

Anion-stabilized calcium-bearing minerals such as calcium carbonate, dolomite, etc. are usually obtained by grinding with anionic polyacrylates, as described, for example, in European patent EP 0 100 947 or French patent 820806. In this patent it is stated that in the case of anion-stabilized suspensions of partially neutralized polyacrylic acids result in better stabilization of viscosity than in the case of a fully neutralized. The stated interval neutralization lies from 40 to 96% neutralization that does not result in cationic suspensions in accordance with the invention to positive results.

Given examples of French patent 820 806 follows that neutralization of <50% does not lead to the goal, and the degree of neutralization of 60 to 70% is the optimum. The minerals are the same as those described in European patent EP 0 256 312, amphoteric dispersing means to give a suspension. In the case of this publication, amphoteric electrolytes have a strong isoelectric point in the acidic range of pH, so they are not suitable for pigment in accordance with the invention, and/or filling and/or mineral suspensions. It should be mentioned only amphoteric polyelectrolytes, which in his receiving of the prior art have a negative charge on its surface.

For some purposes the use of anionic stabilization, however, is undesirable. And it would be much better to use suspensions of neutrally or positively charged particles. If calcium carbonate coated with a dispersing agent,is used as filler in the paper industry, you need to stick it together with negatively charged filler with a cationic retention agent to the paper fiber, saragano negatively depending on the nature of the carboxylic groups.

By neutralizing and flotation of negatively charged particles of minerals and/or fillers and/or pigments in order to achieve the greatest degree of filling and good uderzhivaemoi filler can also negatively charged paper fiber to become flaky, which can lead to the worst the manufacture of paper and result in non-uniform clearance paper. At the present level of technology, this negative effect is almost impossible to avoid. Therefore, currently used in the manufacture of paper shredded dry powder products, which are only weakly negative or externally neutral or slightly positive charged surface is of astigma. When using finely ground powders occurs the problem of dust.

In the dispersion obtained cation - stabilized mineral and/or filler and/or pigment suspension:

Get a cation-stabilized, i.e., positively charged on the surface, partially calcium-bearing minerals such as calcium carbonate, dolomite, etc. the usual patentanmeldungen in water with a neutral and/or cationic protective colloids and/or cationic dispersing means (see laid out a patent application in Germany 37 07 221 30 and 37 833) or by dispersion with a combination of fully neutralized anionic and cationic dispersing means, as described in European patent EP 0 278 A, and in the case of the latter use as much of the cationic polymer to the particles in suspension had a positive charge.

In the European patent EP 0 278 602 also stated polyacrylic acid. Purity is not neutralized polyacrylic acid is unsatisfactory, because already at +20oWith it begins to crystallize and therefore it cannot be dosed.

If crystallization has occurred once, the polymer solution should be heated to 100o

These methods have a drawback, which is that the grinding process, i.e. grinding and dispersion should be carried out in separate stages. According to the method of the prior art, there are the following possibilities:

a) containing calcium lime crushed dry by to obtain the desired fineness. The degree of comminution which can be achieved in this way is limited. The agglomerating due to forces of van der Waals prevents grinding to a high degree of grinding. In a separate stage immediately after it is dispersed with the above-mentioned dispersing agent;

b) containing calcium lime is ground wet with high content of solids (about 30 weight.) without the hope of grinding and dispersant through the filter press is the result of adding plakiruyuschego means by centrifugation and adjusted to the desired concentration. In a separate stage immediately after it is dispersed with the above dispersant;

c) calcium mineral is wet milled with an anionic dispersing agent to the desired degree of grinding, dried and directly after that redispersion with the aforementioned ability to expose disaggregation, as a result, they have less grinding than the original. When drying is not destroyed anionic dispersant may also interfere with the direct dispersion process and to promote multiple use of cationic polyelectrolyte.

The viscosity stability over a long period of time in specified ways not specified.

Obtaining suspensions of minerals and/or fillers and/or pigments should take place as a result of this the consumer or near the consumer, because in a short time they become unsuitable due to the increased viscosity of sedimentatio. The decrease of the viscosity in many cases impossible by dilution, as high concentrations are of exceptional importance for the further processing, for example during the application of paints in the paper industry.

As a result of crushing the obtained cation-stabilized suspensions of minerals and/or fillers and/or pigments previously attempts have been made to obtain a cation-stabilized partially calcium-containing fillers by grinding with a low solids content.

This method has the disadvantage that is t is so high, that suspension cannot be processed.

Stable viscosities over a duration of time is not specified.

The tendency of the suspension to the deposition due to the high solids content and as a result of this suspension is not stable during storage. Transport costs, counting on the solids content, with 45 weight.-Noah suspension by approximately 50% higher than 70 wt.-Noah suspension. Moreover, the production and consumption required approximately 50% more stability during storage.

In the European patent EP 0 104 904 described aqueous suspension of mineral particles with a solid content of at least 40 weight. This suspension contains cationic and amphoteric polyelectrolytes with nitrogen-containing groups, with an average specialist in this publication is not clear what means "amphoteric polyelectrolyte". Rather, the only mentioned amphoteric compounds occurs misconception, as it does not have a pronounced amphoteric character. As dimethyldiallylammonium and acrylamide, which was used in the case of a copolymer, designated as amphoteric, are by their structure exclusively nationname unthinkable during transport ships, this would make it impossible to discharge from large transports that use currently for shipments of this type.

Mixing in such large stores of ships is almost impossible. Transportation by rail within 4 to 7 days are also excluded for the same reasons.

Transportation by rail and by sea is very problematic and environmental reasons.

The following requirements (properties) to the suspensions are desirable for consumers:

good stability when stored for weeks at low viscosity;

to obtain the required properties, as, for example, minor abrasion mesh paper machine upon receipt paper and squeegee for applying paint in a dyeing machine, you must obtain a very finely ground filler. Large coarse filler particles tend also to paper pulp to dust when Photocopying, etc. of

the opacity of the paper, gloss paper and white paper are highly dependent on the fineness of grinding and the degree of penetration of the filler and on paper. The opacity and whiteness are in the paper industry currently susistence and/or pigments with equivalent spherical particle diameter of 50 to 90 weight. <2 μm (measured using sedigraph 5100).

For formulations of paints currently requires basic minerals and/or napolnitel and/or pigments with an equivalent spherical diameter of the particles to 99 weight. <2 μm (measured on sedigraph 5100).

The viscosity stability must be guaranteed within a few weeks, so that during transportation or when storing spoiled suspension as a result of sedimentation or viscosity increase and not to require additional costs for mixing. To ensure that at the present time, the reliability of the product in the paper industry, the necessary capacity for the storage of such suspensions in thousands of cubic meters.

Particles of minerals and/or fillers and/or pigments should be maintained without the use of a large number of auxiliary retaining means in paper production. The hardness values of the finished paper should not strongly depend on a high degree of penetration of minerals and/or pigments and/or fillers.

The result is a high degree of filling of the pulp can be saved, resulting in significant economic benefits in the paper industry.

Pigment and/or the floor is weak, to remain on the surface of the paper, creating the optimum colorful floor. Cationic paint on anionic cellulose remains significantly better on the surface.

Should be made of the high concentration of solids.

The objective of the invention was to create stable during storage suspensions of minerals and/or fillers and/or pigments with a high solids content with low viscosity.

This task in accordance with the invention is solved by the fact that prepared aqueous suspension of minerals and/or fillers and/or pigments with a solids content of 60 to 80 wt. counting on a dry mineral, or dry filler, or the dry pigment, and the mineral, or the filler or pigment dispersed with one or more dispersing agents, which is characterized by the fact that

disperser consists of one or more amphoteric polyelectrolytes in which the number of negative charges in the anionic Monomeric units equal to the number of positive charges in the cationic monomer units and which may optionally contain a neutral Monomeric units;

and/or one or more cationic polyelectrolytes;

the charged prevailing positively;

and/or one or more amphoteric anionic polyelectrolytes in which the non-neutral monomer units are charged the prevailing negative;

and/or one or more partially neutralized anionic polyelectrolytes;

and/or one or more partially neutralized amphoteric anionic polyelectrolytes in which the non-neutral monomer units are charged mainly negative, and the particles of filler and/or pigment and/or mineral neutral or positively charged, with the following content, wt.

a) a Mineral or an appropriate pigment or an appropriate filler, including water 97,0 of 99.98

B1) a Dispersant in the form of the amphoteric polyelectrolytes, partially neutralized anionic partially neutralized amphoteric anionic polyelectrolytes 0,2 3,0

B2) a Dispersant in the form of cationic, Amiternum cationic and amphoteric anionic polyelectrolytes 0,11 3,0

Under the "positive charge" in the future, it should be understood that the particles on their surface have a positive Zeta-potential. Similarly it is necessary to understand the "negative charge", which appears, for example, in the case of cellulose fibers and anionic-stabilisierung and positive charges. Isoelectric point must not lie at pH 7. The isoelectric point of the surface of the particles and amphoteric electrolytes and/or their salts, partial salts and/or salts lies at pH 7, in which positive and negative charges from the outside opposite neutralized.

Under neutral Monomeric units in the framework of the invention it should be understood Monomeric units that do not contain dissociating groups (such as-COOH group), for example, ethylene group.

Externally charged and externally neutral polyelectrolytes are defined by the invention in case the above application by the number of positive or negative groups in the polymer. In the case of amphoteric outside neutral polyelectrolytes number of positive charges in accordance with this, in cationic Monomeric units equals the number of negative charges in the anionic Monomeric units. In the case of amphoteric cationic polyelectrolytes non-neutral monomer units carry predominantly positive charges. In the case of amphoteric anionic polyelectrolytes non-neutral monomer units carry predominantly negative charges.

However, this does not mean that, for example, in the case of the may vary depending on the "strength acid" and "power base". So, for example, amphoteric polyelectrolyte with many of the same positive and negative groups can be electrically connected to either positive or negative, or neutral. This also applies to the amphoteric cationic polyelectrolytes and amphoteric the anionic polyelectrolytes. As a result of displacement of the pH-dependent dissociation acid or basic groups. In particular, when the pH value is 5-10 polyelectrolytes in accordance with the invention have the following external charge (PL.1).

Neutralization of the negative groups of single and/or two and/or trehvalentnami cations influence their dissociation and thus on the state of charge from the outside.

In a preferred embodiment, aqueous dispersion according to the invention contains:

disperser, which consists of one or more amphoteric polyelectrolytes, or

mixtures of one or more amphoteric polyelectrolytes and one or more amphoteric cationic polyelectrolytes or

a mixture of one or more amphoteric polyelectrolytes and one or more weakly amphoteric cationic polyelectrolytes or

a mixture of one or more amphoteric polyelectrolytes and directrelief or

a mixture of one or more amphoteric polyelectrolytes and one or more weakly amphoteric cationic polyelectrolytes and one or more amphoteric anionic polyelectrolytes or

a mixture of one or more amphoteric polyelectrolytes and one or more amphoteric cationic polyelectrolytes and one or more weakly amphoteric anionic polyelectrolytes or

a mixture of one or more amphoteric polyelectrolytes and one or more weakly amphoteric anionic polyelectrolytes or

one or more amphoteric cationic polyelectrolytes or one or more weakly amphoteric cationic polyelectrolytes or

a mixture of one or more amphoteric cationic polyelectrolytes and one or more amphoteric anionic polyelectrolytes or

a mixture of one or more weakly amphoteric cationic polyelectrolytes and one or more amphoteric anionic polyelectrolytes or

a mixture of one or more amphoteric cationic polyelectrolytes and one or more weakly amphoteric anionic polyelectrolytes or

a mixture of one or more amphoteric weakly cationic poliey several amphoteric polyelectrolytes and one or more weakly amphoteric anionic polyelectrolytes or

one or more weakly amphoteric anionic polyelectrolytes or

one or more cationic polyelectrolytes and one or more weakly amphoteric anionic polyelectrolytes and one or more of the above polyelectrolyte is partially neutralized and the particles of napolitana and/or pigment and/or mineral neutral or positively charged.

Preferred aqueous suspension, in which the amphoteric cationic polyelectrolyte and amphoteric anionic polyelectrolyte contain positively charged functional groups in the Deputy ethylene main chain contain a Quaternary ammonium group, a carboxyl group and/or sulfopropyl and/or acid containing groups of ester phosphoric acid group and a positively charged Deputy linked to the main chain by a group -(O= )C=NH - or -(O=)C-O-.

Also more preferred aqueous suspension, in which the amphoteric, anionic, and amphoteric, cationic and amphoteric polyelectrolyte is one or more compounds from the group corresponding to the following General formula:

< / BR>
where

R1, R5, R6and R7mean a hydrogen atom and/or< and/or aryl, or

R8and R9can mean a group of-COOH, if Z stands for a group-COOH,

X means an atom or a group N-H,

Y represents a group-CH2up-C5H10-,

Z means a group of-COOH and/or -(CH2)n-COOH and/or -(CH2n - SO2OH and/or

< / BR>
acidic hard-ether phosphate group and n= 1 to 18, and (a+b) represents the relative amount present in the molecule of the monomer in the range from 5:95 to 99:1.

The Deputy Z may be partially neutralized by a cation of alkali and/or alkaline-earth metal neutralizing 1-99 mol. The degree of neutralization Z cation of an alkali metal may be 1 to 25 mol.

Deputy Z can be completely neutralized if the cation is selected from the group of divalent cation, a trivalent cation, NH+4primary, secondary or tertiary amine or Quaternary ammonium ion.

There is also a variant in which the Deputy Z is not neutralized.

Preferred water suspension, in which if R8or R9is not a group-COOH, and if amphoteric anionic polyelectrolytes used in combination with the amphoteric cationic polyelectrolytes, and the deposits, are given in table.2.

The molar ratio of anionic charge to the cationic charge can range from 55:45 to 51:49.

Mainly in aqueous suspensions according to the invention, the polyelectrolytes are compounds of the General formula:

< / BR>
and if C=0, Z=0,

and

(Kat)+the cation of the alkaline and/or alkaline-earth and/or rare earth metal and/or amine and/or alkanolamine and/or Quaternary ammonium cation,

(An)-chloride, bromide, iodide, nitrite, HSO-4and/or CH3SO-4and a+b+c are in the ratio shown in the table.3

Preferred water suspension in which the dispersant consists of a mixture of amphoteric cationic polyelectrolytes and amphoteric polyelectrolytes, and a+b+c are in the ratio shown in the table.4

In aqueous suspensions according to the invention, the degree of neutralization of the anionic component of all polyelectrolytes, except for purely cationic neutralising cations of alkaline-earth metals may be 0.1 to 100 mol.

Preferably in aqueous suspension according to the invention is determined by the viscosity of the degree of polymerization of amphoteric, anionic, amphoteric, neutral and amphoteric of citizenshi according to the invention minerals and/or fillers and/or pigments contain elements of the second and/or third main group and/or the fourth side group of the Periodic system of elements.

While minerals and/or fillers and/or pigments can be natural calcium carbonate, precipitated calcium carbonate, marble, chalk, dolomite and/or dolomite-containing calcium carbonate.

Preferred water suspension in which the dispersant consists of a mixture of:

(a) one or more cationic polyelectrolytes and/or one or more amphoteric cationic polyelectrolytes in which the non-neutral monomer units are charged the prevailing positive, and

(b) one or more partially neutralized anionic polyelectrolytes and/or one or more partially neutralized amphoteric anionic polyelectrolytes in which the non-neutral monomer units charged, mostly negative,

this cationic polyelectrolyte and/or amphoteric cationic polyelectrolyte contained in such quantities that the particles of filler and/or pigment and/or mineral or positively charged.

This dispersant may consist of a mixture of

(a) one or more cationic homopolymer polyelectrolytes and/or one or more amphoteric copolymer of cationic polyelectrolytes in which the non-neutral monastica neutralized anionic polyelectrolytes and/elitnogo or more partially neutralized amphoteric anionic polyelectrolytes, in which the non-neutral monomer units are charged mainly negative.

Cationic polyelectrolyte and/or amphoteric cationic polyelectrolytes in which the non-neutral monomer units are charged positively, can contain positively charged functional groups in the Deputy ethylene main chain, and positively charged Deputy linked to the main chain by a group -(O=)C-NH - or -(O=)C-O-.

The cationic polyelectrolyte may contain a Quaternary ammonium group, and amphoteric cationic polyelectrolytes in which the non-neutral monomer units are charged mostly positive, may contain a Quaternary ammonium group and a carboxyl group and/or sulfopropyl and/or acid containing groups of ester phosphoric acid group, and anionic partially neutralized amphoteric polyelectrolyte and anionic partially neutralized polyelectrolyte contain carboxyl groups, and anionic partially neutralized polyelectrolyte is a Homo - or copolymer polyelectrolyte.

Preferably the cationic polyelectrolyte is one or more compounds from the group corresponding to the following General B> mean alkyl and/or aryl,

and R5also means group

< / BR>
X means an atom or a group N-H,

Y represents a group-CH to-C5H10-,

n=20 3000

and

(An)-mean chloride and/or bromide and/or iodide and/or nitride and/or HSO-4and/or CH3SO-4.

Preferably also amphoteric cationic polyelectrolytes in which the non-neutral monomer units are charged mainly positive, represents one or more compounds from the group corresponding to the following General formula:

< / BR>
where

R1, R5, R6and R7mean a hydrogen atom and/or

R1R7mean alkyl and/or aryl,

R5can also mean a group

< / BR>
where R8and R9mean a hydrogen atom and/or alkyl and/or aryl,

R8or R9can mean a group of-COOH, if Z stands for a group-COOH,

X means an atom or a group N-H,

Y represents a group-CH to-C5H10-,

Z means a group of-COOH and/or

-(CH2)nCOOH and/or

-(CH2)n-O2OH and/or

< / BR>
acidic hard-ether phosphate group and

a=70 to 99 mol.

b=1 to 30 mol.

Preferably also anionic partially neutralized polyelectrolyte is one or more compounds from the group corresponding to the following General formula

R (D)

where Z means a group of-COOH and/or

(CH2)nCOOH and/or

(CH2)nSO2OH and/or

and/or

acidic hard-ether phosphate group,

R1means a hydrogen atom or a group-CH3,

R2and R3mean a hydrogen atom and/or alkyl and/or aryl, and R2and R3can also have the value of Z, if Z has a value of-COOH,

u=+1 and/or +11 and/or +111,

Ka is a cation of alkali and/or alkaline-earth and/or rare earth metal,

w=59 95 mol. on the number of groups Z in the monomer,

v=5 41 mol. divided by u,

n=1 12.

Preferably in aqueous suspension according to the invention the dispersant consists of a mixture of compounds of the General formula b and/or G and D, or

dispersant consists of a mixture of compounds of General formula

< / BR>
1 where (Kat)+the cation of the alkaline and/or alkaline-earth and/or rare earth metal and/or amine and/or alkanolamine and/or Quaternary ammonium cation,

(An)-chloride and/or bromide and/imol.

z=1 to 70 mol.

w=30 to 99 mol.

Preferred aqueous suspension, in which the anion of the polyelectrolyte and/or amphoteric anionic polyelectrolyte neutralized from 1 to 70 ml. of acid groups, and the specific viscosity "this" partially neutralized anionic polyelectrolyte and/or amphoteric anionic polyelectrolyte in a mixture with cationic and/or amphoteric cationic polyelectrolyte, measured fully in salt form, is from 0.2 to 1.0 and a degree of polymerization of the cationic polyelectrolyte and/or amphoteric cationic polyelectrolyte in a mixture with a partially neutralized anionic polyelectrolyte and/or partially neutralized amphoteric anionic polyelectrolyte, as defined by the limiting values of viscosity, corresponds to a viscosity of from 5 to 50 ml/g and the range of viscosity used in aqueous suspensions of cationic and/or amphoteric cationic polyelectrolyte is from 9.2 to 48.5 ml/year

Preferred water suspension, which consists of 97,0 99.89 per weight. minerals and/or fillers and/or pigments and water and 0.11 3.0 weight. mixtures of cationic and/or amphoteric cationic and partially neutralized anionic and/or partially neutralized amphoteric, any the corresponding dry filler, or the corresponding dry pigment.

Another object of the invention is a method of obtaining a water suspension of minerals and/or fillers and/or pigments with a solids content of 60 to 80 wt.counting on a dry mineral, or dry filler, or the dry pigment, and the mineral or the filler or pigment dispersed with one or more dispersant, and the dispersant comprises a mixture of (a) one or more cationic homopolymer polyelectrolytes and/or one or more amphoteric copolymer of cationic polyelectrolytes in which the non-neutral monomer units charged, predominantly positive, and (b) one or more Homo - or copolymer partially neutralized anionic polyelectrolytes and/or one or more partially neutralized amphoteric anionic polyelectrolytes, in which the non-neutral monomer units are charged mainly negative, characterized in that the aqueous suspension of minerals and/or fillers and/or pigments together with a mixture of dispersant and additives that grinding, subjected to wet grinding, and add amphoteric polyelectrolytes fully or partially before unwinding diameter is after grinding.

Another object of the invention is a method of obtaining a water suspension of minerals and/or fillers and/or pigments with a solids content of 60 to 80 wt. counting on a dry mineral or dry filler, or the dry pigment, and the mineral or the filler or pigment dispersed with one or more dispersant, and the dispersant comprises a mixture of (a) one renesola cationic homopolymer polyelectrolytes and/or one or more amphoteric copolymer of cationic polyelectrolytes in which the non-neutral monomer units charged predominantly positive, and (b) one or more Homo - or copolymer partially neutralized anionic polyelectrolytes and/or one or more partially neutralized amphoteric anionic polyelectrolytes in which the non-neutral monomer units are charged mainly negative, characterized in that

aqueous suspension of minerals and/or fillers and/or pigments together with a mixture of dispersant and additives that grinding, subjected to wet grinding,

and add a portion of the partially neutralized anionic and/or partially neutralized amphoteric, any what about the neutralized amphoteric anionic polyelectrolyte during grinding and/or

part of the partially neutralized anionic and/or partially neutralized amphoteric anionic polyelectrolyte after milling,

and cationic and/or amphoteric cationic polyelectrolyte add completely before grinding or

only a portion of the cationic and/or amphoteric cationic polyelectrolyte before grinding and

part of the cationic and/or amphoteric cationic polyelectrolyte during grinding and/or

part of the cationic and/or amphoteric cationic polyelectrolyte added after grinding.

According to the invention the aqueous suspension of minerals and/or fillers and/or pigments with a solids content of 60 to 80 wt. counting on a dry mineral, or dry filler, or the dry pigment, and the mineral or the filler or pigment dispersed with one or more dispersant, and the dispersant comprises a mixture of (a) one or more cationic homopolymer polyelectrolytes and/or one or more amphoteric copolymer of cationic polyelectrolytes in which the non-neutral monomer units charged predominantly positive, and (b) one or more Homo - or copolymer of partially neutralinoneutralino, in which the non-neutral monomer units are charged mainly negative, used in the manufacture of paper or in the manufacture of paper, and also for processing (pigmentation) of the surface of the paper in the press for gluing bumagodelatelnoe machine and in the process of coating paper, mainly for priming or for applying the outer layer when the coated paper, to fight the impurities in the paper pulp, the waste from the process of coating ("pitch control"), for reduction of consumption of acidic chemical substances in the circulating water bumagodelatelnoe machine for processing wastewater in wastewater treatment plants, pre-coagulation anionic stabilized suspensions of pigments and/or minerals and/or fillers in the manufacture of paper or pre-coagulation (immobiliaria) paint, applied with a brush.

In accordance with the invention was able to obtain a suspension of minerals and/or fillers and/or pigments by grinding at high solids content of 60 weight. in which particles of minerals and/or fillers and/or pigments as likely electrostatically positively and sterically stabilized, suspense the e is deposited and, for example, it has excellent holding ability upon receipt paper.

A striking and unexpected was the fact that when a suitable combination of one or more cationic monomers and one or more anionic monomers and a suitable point of the additive polymerized from them amphoteric polyelectrolytes before and/or during and/or after the grinding process at large shear forces and temperatures that appear when wet grinding, is not mutual neutralization of oppositely charged Monomeric units and thus coagulation of the polymer. In contrast, the optimal reduction and stabilization over a long period of time gives the suspension.

Zeta potentials of particles of minerals and/or pigments and/or fillers have positive signs and externally are neutral, i.e. in the neutral particles of the fillers and/or pigments and/or minerals, the amount of positive and negative charges on the surface of the particles from the outside is stored.

A good storage stability in terms of viscosity and ability to settle is of great importance especially during transportation and with large volumes toothette with the invention allows to freely choose the place of manufacture (place of receipt of the suspension of minerals and/or fillers and/or pigments), and place of use (for example, paper mill). The location can thus be connected with the geological deposits of minerals and/or fillers and/or pigments, and it is made purely logical considerations should not be correlated with the location of the consumer. As a result of this you can be completely free in the choice of means of transport and you can choose environmentally friendly options.

Aqueous suspension of minerals and/or fillers and/or pigments with a solids content of 60 weight. considering the dry minerals and/or fillers and/or pigments produced in accordance with the invention by grinding coarsely chopped raw lime, and amphoteric polyelectrolytes in accordance with the invention is added at the beginning of the grinding and/or other parts of the amphoteric polyelectrolytes according to the invention is added during the grinding and/or after grinding in the composition in accordance with izobreteniem to reduce the viscosity.

Ideal for use in, for example, in the paper industry, the distribution of grain sizes, concentration and stability when stored at low viscosity suspensions of minerals and/or fillers and/or pigments can be PI qualitative progress.

Preferably the concentration of the aqueous suspension is 60 78 weight. counting on a dry mineral.

Preferably the raw material before grinding process is in accordance with the invention, an average equivalent spherical particle diameter of 10 to 50 μm (measured on sedigraph 5100).

Comments to the following examples.

Measurement of the viscosity of the amphoteric polyelectrolytes. The viscosity measurement is carried out on the Brookfield viscometer type F-100 at 100 rpm./minutes For individual measurements was used hydrometer 1: concentration was in all samples 32 weight. polymer in water. The pH value at which the measured viscosity matches the specified value in the respective examples. Anionic groups are not neutralized. The measurement is carried out in a 400-ml beaker low form. The temperature is during the measurement, 20oWith, the measurement was carried out after 1 min of mixing. This type of viscosity measurement was used for all subsequent examples,except amphoteric cationic polyelectrolytes mixed with amphoteric, weakly cationic and/or amphoteric and/or amphoteric, weakly anionic polyelectrolytes.

The dispersion slurry of minerals and/or is determined by sedimentation analysis in heavy field sedigraph 5100 firm Micromeritics, USA. Measurement of cation-stabilized suspensions was carried out in distilled water. The dispersion of the samples was performed using high-speed stirrers and ultrasound. The measurement of the powder was performed in a 0.1% solution of Na4P2O7. The measured distribution of the particles was presented on the X-Y-recorder in the form of the total curve, and on the X-axis is applied, the particle diameter of a corresponding spherical diameter and on the Y-axis is plotted the number of particles in weight.

Measurement of the viscosity of suspensions of minerals and/or fillers and/or pigments. The viscosity measurement was performed on a Brookfield viscometer type F-100 at 100 rpm For individual measurements used the following density: R 2 40 32 MPa.with, R 3 320 800, R 4 800 1600 R 5 1600 3200, R 6 3200 800 MPa. C. the Measurements were carried out in a 400 - millimeter machine low forms. The temperature during measurement was supported by the 20oC. the Measurement was carried out after mixing for 1 minute Before the actual measurement, all samples were mixed for 2 min (500 rpm, the diameter of the mixing washers 50 mm). This type of viscosity measurement was used for all the following examples.

The specific viscosity of the anionic dispersing funds in the examples on the application, which identified grela measure 100% neutralized with caustic soda (rn), that 50 grams, counting on the dry polymer/copolymer was dissolved in 1 l of distilled water containing 60 g of NaCl. After this was measured with a capillary viscometer with a constant 0,000105 in temperature-controlled to 25oWith heated bath time, which must be accurately defined volume of the alkaline solution of the polymer/copolymer for the passage of the capillary and compared with the time that this volume will be the capillary blind solution of 60 g NaCl/L.

Thus, it is also possible to define the specific viscosity "this" as follows:

< / BR>
The best results were obtained if the diameter of the capillary was chosen so that the time necessary for the NaCl solution containing the polymer/copolymer is 90 to 100 C.

P R I m e R 1. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on Seligraph 5100) with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm) was dispersively 0.03 wt. with respect to the dry marble, importimage polymer. Got a dispersion containing 5000 g of marble.

1.5 g amphoteric copolymer of the following formula:

viscosity by Brookfield 37 MPa.C,p is Noah suspension of clay with the distribution of particle sizes, that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 3.0 mass. in relation to the dry clay, amphoteric polymer.Got a dispersion containing 5000 g of clay.

150 g of an amphoteric polymer of the following formula:

viscosity by Brookfield 37 MPa.NRC 3,3

< / BR>
2773 g of water

received with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity after 1 h 810, after 4 days 560.

P R I m e R 3. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (izmereniya Sedigraph 5100) was dispersively 0.4. with respect to the dry marble, of amphoteric polymer. Got a dispersion containing 5000 g of marble.

20 g of an amphoteric polymer of the following formula:

viscosity by Brookfield 37 MPa.with a pH of 3.3

< / BR>
3209 g of water

received with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.5.

P R I m e R 4. 61 wt.-Noah aqueous slurry of natural marble with the same size distribution of particles, which particles have an equivalent spherical diameter &is limera; the dispersion containing 5000 g of marble,

15 g amphoteric cationic polymer of the following formula:

viscosity by Brookfield 31 MPa.with a pH of 3.3

< / BR>
3206 g of water

received with vigorous stirring (800 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.6.

Example 5. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively of 0.3 μs. with respect to the dry marble, amphoteric anionic polymer; a dispersion containing 5000 g of marble.

15 g amphoteric anionic polymer of the following formula:

Viscosity by Brookfield 33 MPa.with a pH of 3.3

< / BR>
3206 g of water

received with vigorous stirring (800 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.7.

P R I m e R 6. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.4. with respect to the dry marble, of amphoteric polymer; a dispersion containing 5000 g m 3209 g of water was obtained by vigorously stirring (8000 rpm The diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.8.

P R I m e R 7. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.4. with respect to the dry marble, of amphoteric polymer; a dispersion containing 5000 g of marble.

20 g of an amphoteric polymer of the following formula:

< / BR>
3209 g of water was obtained by vigorously stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions with polymers, in which Z has different values shown in the table.9.

P R I m e R 8. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of the cationic polymer; a dispersion containing 5000 g of marble.

15 g of the cationic polymer of the following formula:

< / BR>
12.5 g of polyacrylic acid (beats. viscosity of 0.54, 10 mol. carboxyl groups neutralized with NaOH),

3233 g of water

v=0.1 w vNa+

and 0,25. in relation to dry Marginem stirring (8000 rpm). The diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.10.

P R I m e R 9. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of the cationic polymer; a dispersion containing 5000 g of marble;

15 g of the cationic polymer of the following formula:

< / BR>
12.5 g of polyacrylic acid (beats. viscosity of 0.54, 10 mol. carboxyl groups neutralized with NaOH), 3233 g of water

v=0.1 w vNa+

and 0,25. with respect to the dry marble, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide), was received with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.11.

P R I m e R 10. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of the cationic polymer; a dispersion containing 5000 g of marble.

15 g of cationic polymer kedua NaOH), 3233 g of water

v=0.1 w vNa+< / BR>
and 0,25. with respect to the dry marble, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide) was obtained by vigorously stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.12.

P R I m e R 11.

61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical particle diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of the cationic polymer dispersion containing 5000 g marble

15 g of the cationic polymer of the following formula:

< / BR>
(corresponding to the limiting viscosity)

12.5 g of polyacrylic acid (beats. viscosity of 0.54, 10 mol. carboxyl groups neutralized with NaOH), 3233 g of water

v=0.1 w vNa+< / BR>
and 0,25. with respect to the dry marble, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide), was received with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.13.

P R I m e R 12. 65 wt.-Noah aqueous suspension natural MRAM ereny on the Sedigraph 5100), was dispersively 0.4. with respect to the dry marble, of the cationic polymer; a dispersion containing

5000 g of marble,

20 g of poly-(diallyldimethylammoniumchloride),

12.5 g of polyacrylic acid (beats. viscosity of 0.54, 10 mol. carboxyl groups neutralized with NaOH),

2710 grams of water

v=0.1 w vNa+

and 0,25. with respect to the dry marble, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide) was obtained by vigorously stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.14.

P R I m e p 13. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of the cationic polymer; a dispersion containing

5000 g of marble,

15 g of the cationic polymer of the following formula:

the limiting viscosity of 34.8 ml/g

< / BR>
12.5 g of various polymeric acids of the following formula, and 10 mol. the acid groups neutralized with NaOH,

Z/10Na+< / BR>
3233 g of water was obtained by vigorously stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Vasko marble with such a distribution of particle sizes, that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of the cationic polymer. Got a dispersion containing

5000 g of marble

15 g of the cationic polymer of the following formula:

the limiting viscosity of 34.8 ml/g

< / BR>
12.5 g of a polymeric acid of the following formula (ID viscosity of 0.43), 10 mol. carboxyl groups neutralized with NaOH, 3233 g of water

< / BR>
with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions after 1 day 580, after 4 days 550.

P R I m e R 15. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of the cationic polymer. The dispersion containing

5000 g of marble

15 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
12.5 g of a polymeric acid of the following formula (ID viscosity of 0.54), 5 mol. carboxyl groups neutralized Al(OH)33233 g of water

< / BR>
received with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).


5000 g of marble

20 g of an amphoteric polymer of the following formula and viscosity

the Brookfield 37 MPa, and 10% of the carboxyl groups neutralized (Ka)n+:

< / BR>
3209 g of water

received with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.16.

P R I m e R 17. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of amphoteric polymer. Got a dispersion containing

5000 g marble

15 g of an amphoteric copolymer of the following formula:

viscosity by Brookfield 41 MPa.NRC 3,2

< / BR>
1.5 g amphoteric anionic copolymer of the following formula:

the specific viscosity of 0.38 ml/g

< / BR>
3207 g of water was obtained by vigorously stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.17.

ASTIC have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100), was dispersively 0.3 wt. with respect to the dry marble, of amphoteric polymer; received a suspension containing

5000 g of marble

15 g importimage copolymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
1.5 g amphoteric anionic copolymer of the following formula:

the specific viscosity of 0.38 ml/g

< / BR>
3207 g of water

with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.18.

P R I m e R 19. 61 wt.-Noah aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.3 wt. with respect to the dry marble, of amphoteric polymer; received a suspension containing

5000 g of marble

15 g of an amphoteric copolymer of the following formula:

viscosity by Brookfield 53 MPa.NRC 3,6

< / BR>
1.5 g amphoteric anionic copolymer of the following formula: specific viscosity of 0.43 ml/g

< / BR>
3207 g of water

with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.19.

P R I m e R 20. In 61% water suspension at the p <2 μm (measured on the Sedigraph 5100), was dispersively 0.3 wt. with respect to the dry marble, of amphoteric polymer; received a suspension containing

5000 g of marble

15 g of an amphoteric copolymer of the following formula:

the limiting viscosity is 61.3 ml/g

< / BR>
1.5 g amphoteric anionic copolymer of the following formula:

the specific viscosity of 0.45 ml/g

< / BR>
3207 g of water

with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.20.

P R I m e R 21. 61 wt. aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.4. with respect to the dry marble, of amphoteric polymer; received a suspension containing

5000 g of marble

20 g of an amphoteric polymer of the following formula:

< / BR>
3209 g of water

with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table. 21.

P R I m e R 22. 61 wt. aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured NSV Sedigraph TIA

5000 g of marble

20 g amphoteric anionic polymer of the following formula:

< / BR>
3209 g of water

with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.22.

P R I m e R 23. 61 wt. aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.4. with respect to the dry marble, amphoteric cationic polymer; received a suspension containing

5000 g of marble

20 g amphoteric cationic polymer of the following formula:

< / BR>
3209 g of water

with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.23.

P R I m e R 24. 61 wt. aqueous slurry of natural marble to stack size distribution of particles that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.4. with respect to the dry marble, amphoteric anionic polymer; received a suspension containing

5000 g of marble

20 g importimage anionic polymer of the following formula:

< / BR>
3209 Gchild suspensions are given in table.24.

P R I m e R 25. 61 wt. aqueous slurry of natural marble with the distribution of particle sizes that 55% of the parts have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.4. with respect to the dry marble, amphoteric cationic polymer; received a suspension containing

5000 g of marble

20 g importimage cationic polymer of the following formula:

< / BR>
3209 g of water

with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity by Brookfield suspensions are given in table.25.

P R I m e R 26. 65 wt.-Naya aqueous slurry of natural marble with an equivalent spherical diameter of 12 mm (measured on the Sedigraph 5100) was razulybalas with the suspension below with the following recipe in a Dynomill (0.6 l vessel for grinding) using grinding particles of glass (diameter 1 mm) to such a particle size distribution to 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100).

Recipe: 3000 g of marble, 6.8 g of cationic polymer, corresponding to example 11, 1.5 g of polyacrylic acid (specific viscosity of 0.35), 1 mol. carboxyl groups neutralized KOH, is added before the grinding, 1.0 g polle grinding, 1615 g of water.

Viscosity:

after 2 h 250 mPas

after 1 day 200 mPas

after 5 days 180 mPas

after 20 days 120 mPas

This example clearly demonstrated that cationic polyelectrolytes, completely independent here on their chemical structure, in combination with the relevant invention anionic partially neutralized polyelectrolytes, can be obtained very deep and stable for weeks viscosity, also obtained by grinding finely dispersed suspensions of minerals and/or fillers and/or pigments.

Example 27. 67 wt.-Naya aqueous suspension of particles of natural marble with bivalence spherical average diameter of 12 μm (measured on the Sedigraph 5100) was reserches with a suspension following a recipe in a Dynomill (0.6 l vessel for grinding) using grinding particles of glass (diameter 1 mm) to such a particle size distribution to 65 wt. the particles had an equivalent spherical diameter <2 m (measured on the Sedigraph 5100).

Recipe: 5000 g of marble, 15 g of the cationic polymer with the structural formula is:

< / BR>
and with the utmost fluidity of 35.5 ml/g,

1.35 g of polyacrylic acid (specific viscosity of 0.35), 8 mol. carboxilic groups neutrality mol. carboxyl groups neutralized with NaOH, added during the grinding

2472 g water

Viscosity:

after 2 h 140 mPas

after 1 day 120 mPas

in 10 days 104 mPas

after 20 days 148 mPas

Example 27 shows that the side chain carrying the cationic charge can be linked through ester group, with the ethylene polymer chain and also leads to a very deep viscosity and a good stability in time.

P R I m e R 28. 70 wt. the aqueous slurry of natural marble with a particle size distribution such that 60 wt. the particles had an equivalent spherical diameter <2 m (measured on the Sedigraph 5100) was dispersed to 0.35 wt. considering the dry marble, amphoteric, cationic copolymer of example 12, and with 0.08 wt. considering dry the marble with a partially neutralized anionic polyelectrolytes of different specific viscosity or molecular weight, different chemical compositions and with different degree of neutralization with vigorous stirring (8000 rpm), the diameter of mix discs 50 mm

P R I m e R 29. 67 wt.-Naya aqueous slurry of natural marble with the distribution of particle sizes that 60% of the particles have an equivalent spherical diameter <2 μm (ispaniu, contains

5000 g of marble

15 g of an amphoteric copolymer of the following formula:

viscosity by Brookfield 37 MPa.with a pH of 3.3

< / BR>
2470 g of water,

with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity after 1 h 140, after 1 day 160, after 4 days 140, after 8 days 130.

P R I m e R 30. 73 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed with the following substances (0.6 l container for milling) using grinding particles of glass ( 1 mm) to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble

22 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
3.0 g of polyacrylic acid (beats. viscosity of 0.54), 20 mol. carboxyl groups neutralized with Mg(OH)2), added prior to grinding,

1.5 g of polyacrylic acid (beats. viscosity of 0.54), 20 mol. carboxyl groups neutralized with Mg(OH)2that was added during grinding,

1895 water

< / BR>
Viscosity after 1 h 970, after 1 day 620, 8 days 13 days 520.

the nd particles of 12 μm (measured on the Sedigraph 5100), was crushed together with the following substances in a Dynomill (0.6 l container for grinding using grinding particles of glass ( 1 mm) to a distribution of particle sizes that 90 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble

36.5 g of cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
4.5 g of poly (methacrylic acid (beats. viscosity of 0.61), 5 mol. carboxyl groups neutralized with NaOH, added to the grinding

0.7 g of poly (methacrylic acid (beats. viscosity of 0.61), 5 mol. carboxyl groups neutralized with NaOH,

added during grinding,

2715 g of water

< / BR>
Viscosity after 1 330, after 1 day 290, after 13 days 260.

P R I m e R 32. 65 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed together with the following composition in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1 mm), to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble,

15 g of cationic polymer followed by carboxylic groups neutralized by CA(OH)2added to the grinding

2 g of polyacrylic acid (beats. viscosity of 0.54), 50 mol. carboxylic groups neutralized by CA(OH)2that was added during grinding.

2704 g

< / BR>
Viscosity after 1 h 130, 1 day 300, 8 days 550.Neutralization of polyacrylic acid even only at 50% gives a slight increase in viscosity after 8 days, but still acceptable.

P R I m e R 33. 65 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed together with the following composition in a Dynomill (0.6 l container for Ramayana) using grinding bodies of glass ( 1 mm), to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble

25 g of the cationic copolymer of the following formula:

the limiting viscosity of 17.7 ml/g

< / BR>
4.5 g of polyacrylic acid (beats. viscosity of 0.54), 5 mol. carboxyl groups neutralized with NaOH, added to the grinding

1.5 g of polyacrylic acid (beats. viscosity of 0.54), 5 mol. carboxyl groups neutralized with NaOH, added during the grinding

2704 g of water

< / BR>
Viscosity after 1 ntny spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100), was crushed together with the following composition in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1 mm), to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble

20 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
4.0 g of polyacrylic acid (beats. viscosity of 0.54), 30 mol. carboxyl groups neutralized with Mg(OH)2added to the grinding

1.5 g of polyacrylic acid (beats. viscosity of 0.54), 30 mol. carboxylic groups neutralized by Ca(OH)2added during grinding,

2589 g of water

< / BR>
Viscosity after 1 h 400, 1 day 330, 14 days 210.

P R I m e R 35. 65 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed together with the following composition in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1 mm), to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble,

20 g of the cationic polymer of the following four what they say. polyacrylic acid,

20 mol. sulfonic acid (beats. viscosity of 0.40),

10 mol. the acid groups neutralized with NaOH, added to the grinding

additional 2.0 g of anionic copolymer, is added during the grinding

2705 g of water

formula anionic polymer

< / BR>
Viscosity after 1 h 250, 1 day 230, 4 days 220.

P R I m e R 36. 65 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed together with the following composition in Denomill (0.6 l container for milling) using grinding bodies of glass ( 1 mm)to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble,

20 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
3.0 g of anionic copolymer of the following formula

80 mol. polyacrylic acid,

20 mol. phosphoric acid (beats. viscosity of 0.71),

10 mol. the acid groups neutralized with NaOH, added to the grinding

1.5 g of anionic same copolymer added to tchechenie grinding.

2705 g of water

< / BR>
Vascos the equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100), was crushed together with the following composition in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1mm) to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured by Sedigraph 5100):

5000 g of marble,

20 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
3.0 g of anionic copolymer of the formula below,

80 mol. polyacrylic acid,

20 mol. maleic acid (beats. viscosity of 0.29),

33 mol. the acid groups neutralized with NaOH, added to the grinding

2.0 g of anionic same copolymer, is added during the grinding

2705 g of water

< / BR>
Viscosity after 1 h 290, 4 days 220.

P R I m e R 38. 65 wt.-Naya water suspension, natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed with the following composition in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1 mm), to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured by Sedigraph 5100):

5000 g of marble,

20 g of cationic polymer trace is s,

80 mol. polyacrylic acid

20 mol. methacrylic acid (beats. viscosity of 0.60),

33 mol. the acid groups neutralized NH4OH, added before the grinding,

1.5 g of anionic same copolymer, is added during the grinding

2705 g of water

< / BR>
Viscosity after 1 h 280, 1 day 270, 4 days 220, 8 230 days, 14 days 220.

P R I m e R 39. 73 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed together with the following substances in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1mm), to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble,

22 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
3.0 g of polyacrylic acid (beats. viscosity of 0.54), 20 mol. carboxyl groups neutralized COHN, added prior to grinding,

1.5 g of polyacrylic acid (beats. viscosity of 0.54), 20 mol. carboxyl groups neutralized COHN, added during the grinding

1895 water

< / BR>
Viscosity after 1 h 620, 13 days 580.

P R valence spherical diameter of 2 μm (measured on the Sedigraph 5100), was dispersively 0.9 wt. in relation to the dry aluminum hydroxide, cationic polymer; received a suspension containing:

5000 g of Al(OH)3< / BR>
45 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
< / BR>
12.5 g of polyacrylic acid (beats. viscosity of 0.54), 10 mol. carboxyl groups neutralized with NaOH,

3233 g of water

< / BR>
and 0,25. in relation to the dry aluminum hydroxide, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide), with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 500 mm).

Viscosity after 1 h 580, 13 days 520.

P R I m e R 41. 62 wt. aqueous suspension of kaolin (clay) with the distribution of particle sizes that 60% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 1.8 wt. in relation to the dry kaolin, of cationic polymer; received a suspension containing:

5000 g of clay (kaolinite),

90 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
2.5 g of polyacrylic acid (beats. viscosity of 0.54), 10 mol. carboxyl groups neutralized with NaOH,

3121 g of water

< / BR>
and 0.05 wt. in relation to the dry clay, acrylic KIS is iameter the blades of the mixer 50 mm).

Viscosity after 1 h 590, 8 days 630.

P R I m e R 42. 67 wt. -Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 7.5 μm (measured on the Sedigraph 5100) was crushed together with the following substances in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1 mm), to a distribution of particle sizes that 80 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble,

to 22.5 g of the cationic polymer of the following formula:

the limiting viscosity 65,6 ml/g

< / BR>
4.5 g of polyacrylic acid (beats. viscosity of 0.54), 5 mol. carboxyl groups neutralized with NaOH, added to the grinding

1.5 g of polyacrylic acid (beats. viscosity of 0.54), 5 mol. carboxyl groups neutralized with NaOH, added during the grinding

2476 g of water

< / BR>
Viscosity: after 1 h 180, 1 day 230, 8 days 350.

P R I m e R 43. 71 wt. aqueous suspensions of titanium dioxide Tiona RCL-535 rutile from S. S. M. Chemicals U. K. with an average particle diameter of 0.3 μm (measured on the Sedigraph 5100) was dispersively of 0.32 wt. in relation to the dry titanium dioxide, cationic polymer; received a suspension containing:

5000 g of TiO2< / BR>
16 g of cationic polymerizaton NaOH,

2050 water

and 0.05 wt. in relation to the dry titanium dioxide, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide) with vigorous stirring (800 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity after 1 h 310, 1 day 350, 8 days 460.

P R I m e R 44. Received 67 wt.-percent aqueous suspension of a mixture of titanium dioxide and natural marble in the ratio 20:80 Tiona CL 535 rutile: marble (Example N-a: Example N-b) without additional dispersant with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity after 1 h 350, 8 days 460.

P R I m e R 45. 61 wt. -Noah aqueous suspension of mica with the distribution of particle sizes that 58% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 1.9 wt. in relation to the dry mica, cationic polymer; received a suspension containing:

5000 g of mica

95 g of the cationic polymer of the following formula:

< / BR>
7.5 g of polyacrylic acid (beats. viscosity of 0.54), 10 mol. carboxyl groups neutralized with NaOH,

3262 g of water

< / BR>
and 0.15 wt. in relation to the dry mica, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide) at energion the>P R I m e R 46. 60 wt. -Noah aqueous suspension of precipitated calcium carbonate (COC) with the distribution of particle sizes that 45% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.5. in relation to dry the OCC, the following cationic polymer; received a suspension containing:

5000 g of precipitated calcium carbonate

25 g of the cationic polymer of the following formula:

< / BR>
5.0 g of polyacrylic acid (beats. viscosity of 0.54), 10 mol. carboxyl groups neutralized with NaOH,

3353 g of water

< / BR>
and 0.10 wt. in relation to dry the OCC, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide) with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity after 1 h 340, 8 days 410.

P R I m e R 47. 64 wt. aqueous slurry of natural marble with the distribution of particle sizes that 60% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively of 0.45 wt. with respect to the dry marble, of the cationic polymer; received a suspension containing:

5000 g of marble

to 22.5 g of cationic copolymer of the following formula:

the limiting viscosity of 28.0 ml/g

< / BR>
5.0 g on the Mac. with respect to the dry marble, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide) with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

< / BR>
Viscosity after 1 h 280, 1 day 320, 8 days 380, 14 days 370.

P R I m e R 48. 62 wt. aqueous slurry of natural marble with the distribution of particle sizes that 55% of the particles have an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100) was dispersively 0.4. with respect to the dry marble, of the cationic polymer; received a suspension containing:

5000 g of marble

20 g of the cationic copolymer of the following formula:

the limiting viscosity of 25.0 ml/g

< / BR>
5.0 g of polyacrylic acid (beats. viscosity of 0.54), 10 mol. carboxyl groups neutralized with NaOH,

3080 grams of water

< / BR>
and 0.10 wt. against ku dry marble, polyacrylic acid (10 mol. carboxyl groups neutralized with sodium hydroxide) with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

Viscosity after 1 h 620, 1 day 580, 10 days 520.

P R I m e R 49. 62 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was MEAs is C glass ( 1 mm), to such a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble,

22 g of the cationic polymer of the following formula:

the limiting viscosity 65,7 ml/g

< / BR>
3.0 g of the copolymer of the following formula (ID viscosity of 0.4), 20 mol. the acid groups neutralized LiOH added before grinding

1.5 g of the copolymer of the following formula (ID viscosity of 0.4), 20 mol. the acid groups neutralized LiOH added during grinding,

3081 g of water

< / BR>
Viscosity after 1 h 760, 4 days 900, 13 days.

P R I m e R 50. 62 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed together with the following substances in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1 mm), to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble

22 g of the cationic polymer of the following formula:

the limiting viscosity was 48.3 ml/g

< / BR>
3.0 g of polyacrylic acid (beats. viscosity of 0.54), 100 mol. carboxyl groups neutralized with NaOH dobavleno NaOH, added during grinding,

1895 water

< / BR>
Viscosity after 1 h 590, 13 days 760.

P R I m e R 51. 62 wt.-Naya aqueous slurry of natural marble having an equivalent spherical diameter of secondary particles of 12 μm (measured on the Sedigraph 5100) was crushed together with the following substances in a Dynomill (0.6 l container for milling) using grinding bodies of glass ( 1 mm), to a distribution of particle sizes that 60 wt. the particles had an equivalent spherical diameter <2 μm (measured on the Sedigraph 5100):

5000 g of marble

22 g of the cationic polymer of the following formula:

the limiting viscosity of 55.5 ml/g

< / BR>
3.0 g of polyacrylic acid (beats. viscosity of 0.54), 10 mol. carboxyl groups neutralized with NaOH, added to the grinding

1.5 g of polyacrylic acid (beats. viscosity of 0.54), 10 mol. carboxyl groups neutralized with NaOH, added during the grinding

< / BR>
Viscosity after 1 h 620, 13 days 800.

P R I m e R 52. 2000 63 wt. the aqueous slurry of natural marble, each having a different grain size distribution, shown in the list (measured on the Sedigraph 5100) was obtained with different contents, with respect to the dry marble, of the following cationic polymer:

< / BR>
with vigorous stirring (8000 rpm, the Diameter of the blades of the mixer 50 mm).

The purpose of this test series was to show that the grain size distribution does not restrict the scope of the present invention (see tab.26).

Example 53. Prepare the polymer blend: 87 including cationic polymer of the following formula:

< / BR>
with a limit of viscosity for 65.7 ml/g and 13 parts of a partially neutralized anionic polymer with different specific viscosity following formula

< / BR>
Dispergirovannoyj the mixture was received with vigorous stirring for 5 min (3000 rpm; the diameter of the blades of the mixer 50 mm).

Then cooked 2000 61 weight.-percent aqueous dispersion of natural marble, the particle size of which corresponded to the average diameter of an equivalent spherical particles of 0.7 μm (measured on the Sedigraph 5100); this dispersion contained various amounts of the above polymer mixtures; the variance of the marble and polymer mixture was intensively mixed (8000 rpm; diameter of the blades of the mixer 50 mm).

The data table.27 show that you can also pre-prepare a mixture of a cationic polymer and a partially neutralized anionic polymer before mixing with marble.

4. The suspension on the PP. 1 and 2, characterized in that the amphoteric, anionic, and amphoteric amphoteric cationic polyelectrolyte comprise one or more compounds from the group of the General formula

< / BR>
where R1, R5R7hydrogen and/or R1- R7alkyl and/or aryl;

R8and R9hydrogen and/or alkyl and/or aryl, or R8and R9can mean a group of-COOH, if Z denotes the group-COOH;

X is oxygen or the group N-H;

The Y group is-CH2to C5H10-;

Z group COOH and/or -(CH2)n-COOH and/or -(CH2)n-SO2OH, and/or

< / BR>
n 1 18,

moreover, (a + b) represents the relative amount present in the molecule of the monomer in the range of 5:95 to 99:1.

and/or an acidic hard-ether phosphate group.

5. Suspension under item 4, characterized in that substituent Z is partially neutralized by a cation of alkali and/or alkaline earth metal with the degree night metal is 1 to 25 mole.

7. The suspension on the PP.5 and 6, characterized in that the Deputy Z neutralized completely, if the cation is selected from the group of divalent cation, a trivalent cation, NH+4primary, secondary or tertiary amine or Quaternary ammonium ion.

8. Suspension under item 4, characterized in that substituent Z is not neutralized.

9. Suspension under item 4, wherein if R8or R9are not group-COOH and if amphoteric anionic polyelectrolytes used in combination with the amphoteric cationic polyelectrolytes, and therefore the particles are neutralized or positively charged on the surface, a and b are in the following ratios, they say.

< / BR>
10. Suspension under item 4, characterized in that the molar ratio of anionic and cationic charges is 55:45 51:49.

11. Suspension under item 1, characterized in that the polyelectrolytes are compounds of General formula

< / BR>
where Z c/valence (Kat)+and if 0, then Z 0,

(Kat)+the cation of the alkaline and/or alkaline earth and/or rare earth metal and/or amine and/or alkanolamine, and/or Quaternary ammonium cation;

(An)-chloride, bromide, iodide, nitrite, HSO-4and/or penzija on PP.1 and 11, characterized in that the dispersant consists of a mixture of amphoteric cationic polyelectrolytes and amphoteric polyelectrolytes, and a+b+c are in the following ratios, they say.

Amphoteric Amphoteric cationic

and 50 and 70 99

b + c 50 b + c 30 1

or

Amphoteric discontinue Amphoteric cationic

and 47 and 49 70 99

b + c 51 53 b + c 30 1

or

Amphoteric discontinue Amphoteric cationic

a 51 53 a 97-80

b + c 49 47 b + c 3 20

13. Suspension under item 1, characterized in that the degree of neutralization of the anionic component of all polyelectrolytes, except for purely cationic, by neutralizing cations of alkaline earth metals is 0.1 to 100.0 mol.

14. Suspension under item 1, characterized in that a viscosity degree of polymerization of amphoteric, anionic, amphoteric, neutral and amphoteric cationic polyelectrolytes corresponds to a viscosity of 5 to 10 mPas.

15. Suspension under item 1, characterized in that the minerals and/or fillers and/or pigments contain elements of the second and/or third main group and/or the fourth side group of the Periodic system.

16. Suspension under item 15, characterized in that the minerals and/or fillers and/or pigments is of ASI calcium carbonate.

17. Suspension under item 1, characterized in that the dispersant consists of a mixture of (a) one or more cationic polyelectrolytes and/or one or more amphoteric cationic polyelectrolytes in which the neutral Monomeric units charged predominantly positive, and (b) one or more partially neutralized anionic polyelectrolytes and/or one or more partially neutralized amphoteric anionic polyelectrolytes in which the non-neutral monomer units are charged mainly negative, with cationic polyelectrolyte and/or amphoteric cationic polyelectrolyte contained in such quantities that the particles of filler and/or pigment, and/or mineral are charged positively.

18. Suspension under item 17, characterized in that the dispersant consists of a mixture of (a) one or more cationic homopolymer polyelectrolytes and/or one or more amphoteric copolymer of cationic polyelectrolytes in which the non-neutral monomer units charged predominantly positive, and (b) one or more Homo - or copolymer partially neutralized anionic polyelectrolytes and/or one or more partially neutralized impoters the CLASS="ptx2">

19. The suspension on the PP.17 and 18, characterized in that the cationic polyelectrolyte and/or amphoteric cationic polyelectrolytes in which the non-neutral monomer units are charged positively contain positively charged functional groups in the Deputy ethylene main chain, and positively charged Deputy linked to the main chain by a group -(O=)C - NH, or -(O=)-C-O-.

20. Suspension under item 17, characterized in that the cationic polyelectrolyte contains a Quaternary ammonium group, and amphoteric cationic polyelectrolytes in which the non-neutral monomer units are charged mostly positive, contains a Quaternary ammonium group or carboxyl group, and/or sulfopropyl, and/or containing the group of ester phosphoric acid group, and anionic partially neutralized amphoteric polyelectrolyte and anionic partially neutralized polyelectrolyte contain carboxyl groups, and anionic partially neutralized is a Homo - or copolymer polyelectrolyte.

21. Suspension under item 17, characterized in that the cationic polyelectrolyte is one or more compounds from the group of the General formula

< / BR>
g the t group

< / BR>
X is oxygen or the group NH;

The Y group is-CH2before C5H10-;

n 20 3000;

(An)-chloride and/or bromide and/or iodide and/or nitrite, and/or HSO-4and/or CH3SO-4.

22. Suspension under item 17, characterized in that the amphoteric cationic polyelectrolytes in which the non-neutral monomer units are charged mainly positive, represents one or more compounds from the group of the General formula

< / BR>
where R1, R5R7hydrogen and/or R1- R7alkyl and/or aryl, and R5can also mean a group

< / BR>
R8and R9hydrogen and/or alkyl and/or aryl, or may mean a group of-COOH, if Z is the group-COOH;

X is oxygen or the group NH;

The Y group is-CH2up-CH5H10- the group-COOH, and/or (CH2)n-COOH and/or -(CH2)nSO2OH, and/or

< / BR>
and/or acidic hard-ether phosphate group;

and 70 to 99 mol.

b 1 30 mol.

n 1 18;

(An)-chloride and/or bromide and/or iodide and/or nitrite, and/or HSO-4and/or CH3SO-4.

23. Suspension under item 17, characterized in that the anionic partially neutralizou the Le

< / BR>
where the Z group is-COOH and/or -(CH2)n-COOH and/or -(CH2)n-SO2OH, and/or

< / BR>
and/or acidic hard-ether phosphate group;

R1hydrogen or the group-CH;

R2and R3hydrogen and/or alkyl and/or aryl, and R2and R3can also have the value of Z, if Z is COOH;

u +I and/or +II, and/or +III;

Ka is a cation of alkali and/or alkaline earth and/or rare earth metal;

w 59 95 mol. on the number of groups Z in the monomer;

v 5 41 mol. divided by u;

n 1 12.

24. Suspension under item 17, characterized in that the dispersant consists of a mixture of compounds of the General formula p. 20 and/or 21 and 22, or of a mixture of compounds of General formula

< / BR>
< / BR>
where (Kat)+the cation of the alkaline and/or alkaline earth and/or rare earth metal and/or amine and/or alkanolamine, and/or Quaternary ammonium cation;

(An)-chloride and/or bromide and/or iodide and/or nitrite, and/or HSO-4, and/or CH3SO-4,;

a 60 to 99 mol.

b 1 40 mol.

z 1 70 mol.

w 30 to 99 mol.

25. Suspension under item 17, characterized in that the anionic polyelectrolyte and/or amphoteric anionic polyelectrolyte neutralized 1 70 mol. acid GRU is on polyelectrolyte mixed with cationic and/or amphoteric cationic polyelectrolyte, measured fully in salt form, is 0.2 to 1.0 and a degree of polymerization of the cationic polyelectrolyte and/or amphoteric cationic polyelectrolyte in a mixture with a partially neutralized anionic polyelectrolyte and/or partially neutralized amphoteric anionic polyelectrolyte, as defined by the limiting values of viscosity corresponds to a viscosity of 5 to 50 ml/g and the range of viscosity used in aqueous suspensions of cationic and/or amphoteric cationic polyelectrolytes make up 9.2 of 48.5 ml/year

26. Suspension under item 17, characterized in that it consists of 97,0 99.89 per wt. minerals and/or fillers and/or pigments and water and 0.11 3.0 mass. mixtures of cationic and/or amphoteric cationic and partially neutralized anionic and/or partially neutralized amphoteric anionic polyelectrolytes, and the dry matter content of 60 to 80 wt. per dry minerals, or dry filler, or the dry pigment.

27. A method of obtaining a water suspension of minerals and/or fillers and/or pigments with a solids content of 60 to 80 wt. counting on a dry mineral, or dry filler, or the dry pigment, and the mineral, or the filler or pigment dispersed with one of the cationic polyelectrolytes and/or one or more amphoteric copolymer of cationic polyelectrolytes, in which the non-neutral monomer units charged predominantly positive, and (b) one or more Homo - or copolymer partially neutralized anionic polyelectrolytes and/or one or more partially neutralized amphoteric anionic polyelectrolytes in which the non-neutral monomer units are charged mainly negative, characterized in that the aqueous suspension of minerals and/or fillers and/or pigments together with a mixture of dispersant and additives that grinding, subjected to wet grinding, and add amphoteric polyelectrolytes fully or partially before grinding and part of the amphoteric polyelectrolytes during grinding and/or part of the amphoteric polyelectrolytes after grinding.

28. A method of obtaining a water suspension of minerals and/or fillers and/or pigments with a solids content of 60 to 80 wt. counting on a dry mineral, or dry filler, or the dry pigment, and the mineral, or the filler or pigment dispersed with one or more dispersant, and the dispersant comprises a mixture of (a) one or more cationic homopolymer polyelectrolytes and/or one or more with obladaushi positively, and (b) one or more Homo - or copolymer partially neutralized anionic polyelectrolytes and/or one or more partially neutralized amphoteric anionic polyelectrolytes in which the non-neutral monomer units are charged mainly negative, characterized in that the aqueous suspension of minerals and/or fillers and/or pigments together with a mixture of dispersant and additives that grinding, subjected to wet grinding, and add a portion of the partially neutralized anionic and/or partially neutralized amphoteric anionic polyelectrolyte before grinding and part of the partially neutralized anionic and/or partially neutralized amphoteric anionic polyelectrolyte during grinding and/or part of the partially neutralized anionic and/or partially neutralized amphoteric anionic polyelectrolyte after grinding, and cationic and/or amphoteric cationic polyelectrolyte add completely before grinding or only a portion of the cationic and/or amphoteric cationic polyelectrolyte before grinding and part of the cationic and/or amphoteric cationic polyelectrolyte during grinding and/or part is in for the manufacture and processing of paper, for wastewater treatment and pulp from harmful substances, characterized in that it is an aqueous suspension of minerals and/or fillers and/or pigments with a solids content of 60 to 80 wt. counting on a dry mineral, or dry filler, or the dry pigment, and the mineral, or the filler or pigment dispersed with one or more dispersant, and the dispersant comprises a mixture of (a) one or more cationic homopolymer polyelectrolytes and/or one or more amphoteric copolymer of cationic polyelectrolytes in which the non-neutral monomer units charged predominantly positive, and (b) one or more Homo - or copolymer partially neutralized anionic polyelectrolytes and/or one or more partially neutralized amphoteric anionic polyelectrolytes in which the non-neutral monomer units are charged mainly negative.

Priority points:

06.06.89 on PP. 1 26 and 29.

19.12.89 on PP. 27 and 28.

 

Same patents:

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2 cl, 2 ex, 1 tbl

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Modified gum arabic // 2347788

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14 cl, 7 tbl, 50 ex

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2 cl, 1 tbl, 12 ex

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4 cl, 2 dwg, 3 tbl

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1 tbl

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3 cl, 2 dwg, 3 tbl

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20 cl, 14 dwg, 7 tbl, 15 ex

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4 cl, 2 dwg, 3 tbl

FIELD: textiles; paper.

SUBSTANCE: method relates to obtaining white pigment for making paper and cardboard and is designed for use in paper and cardboard production. The method involves reaction of the suspension calcium hydroxide with a solution of aluminium sulphate in the presence of a modifying agent. The modifying agent used is a salt of carboxymethylcellulose in quantity of 1.0-2.0 mass of white pigment. The modifying agent is put into the dispersion of calcium hydroxide before its reaction with aluminium sulphate solution.

EFFECT: lower viscosity of the pigment dispersion and improved flow characteristics.

Paper filler // 2345189

FIELD: textile, paper.

SUBSTANCE: filler is designed for paper making and can be used in pulp-and-paper industry. Filler contains calcium salt and cellulose derivative with lattice ionic fractional substitutionality up to approximately 0.65, where filler is essentially free from either cellulose fibre or fibrils or lignocellulose. Filler contains calcium salt and cellulose derivative with lattice ionic fractional substitutionality up to approximately 0.65, where cellulose derivative can contain cationic groups. Besides the invention refers to production process of filler involving mixing the agent substance containing calcium salt and cellulose derivative with lattice ionic fractional substitutionality up to approximately 0.65, essentially without cellulose fibre or fibrils or lignocellulose. Other production process of filler consists in mixing the agent substance containing calcium salt and cellulose derivative with lattice ionic fractional substitutionality up to approximately 0.65, where cellulose derivative contains cationic groups. The invention refers to method for making paper including preparation of aqueous suspension containing cellulose fibre, suspension addition with filler containing calcium salt and cellulose derivative with lattice ionic fractional substitutionality up to approximately 0.65, where filler is essentially free from either cellulose fibre or fibrils or lignocellulose; dehydration of suspension thus making web or paper sheet. The invention also refers to method for making paper including preparation of aqueous suspension containing cellulose fibre; suspension addition with filler containing calcium salt and cellulose derivative with lattice ionic fractional substitutionality up to approximately 0.65, where cellulose derivative contains cationic groups; dehydration of suspension thus making web or paper sheet.

EFFECT: higher sizing efficiency with good drainage, retention and serviceability of papermaking machine.

24 cl, 3 tbl, 4 ex

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