Method of obtaining base for composite anticorrosion coating material and method of obtaining composite anticorrosion coating material using said base

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry and specifically to obtaining composite anticorrosion coating materials meant for protecting rusty metal surfaces from corrosion, applied directly onto the rusty metal surface, and obtaining a base - sorption materials from products of processing natural organic compounds of plant origin. The method of obtaining a base for composite anticorrosion coating material involves using cut high density wood as raw material which undergoes hydrolysis with 0.5-0.8% sulphuric acid solution, washing and pressing the hydrolysate, its ammonolysis which is carried out with a mixture containing ammounium hydroxide, sodium citrate, sodium hydroxide, citric acid sodium, water, repeated washing and pressing the ammoniated product, separation into fractions, drying the product to 5-15% moisture content. The product is activated in the presence of ammonium hydroxide, amine additives, catalyst and water, followed by grinding and activation with a composition containing ammonium hydroxide, amine additives, catalysts and water at normal pressure and temperature of 100-150°C until achieving 5-15% moisture content of the product and particle size of 1-10 mcm. The method of obtaining composite anticorrosion coating material involves preparation of a mixture of binding substance and a base for composite anticorrosion coating material, mechanical activation and dispersion of the composition with filler pigments, treatment in the chamber of an apparatus with a vortex layer of ferromagnetic particles, colouring and dilution with diluents-solvents. The material is taken for bottling and packaging.

EFFECT: method enables to shorten the time for obtaining the material and power consumption, while obtaining high-quality anticorrosion coating complex material.

10 cl

 

The invention relates to the field of chemical industry, namely the production of composite anti-corrosion coatings, designed to protect rusty metal surfaces from corrosion, applied directly onto rusty metal surface, and obtaining basics sorption materials, based on the products of processing of natural organic compounds of plant origin.

A method of obtaining modified additives on the basis of lignin for paints and varnishes sequential processing minichannel and electroactivated water in an alkaline medium and grinding until the particle size of 5-12 microns (SU 1378338 A1, 27.10.1998) - equivalent.

A method of obtaining modified corrosion additives on the basis of hydrolytic lignin for paint material, in which the activated lignin mechanochemical process in the presence of ammonium hydroxide, amine additive, and water to achieve a moisture content of the product 15-17% and grinding until the particle size of 5-30 μm, and a method of obtaining a composite material, paint over the rust by mixing a binder (in particular, enamel PF-115) and the above corrosion-modifying additives (EN 2185410 C2, 20.07.2002) prototype.

The disadvantages of the known technical solutions Zack is uchitsya is that they are not quickly and effectively converts rust.

The technical result from the use of the proposed technical solution can be expressed in enhancing the anti-corrosion properties and efficiency in the use of corrosion-resistant material.

The problem is solved in that in the method of production of composite anti-corrosion material, paint over the rust on the basis of products of processing of organic raw materials of plant origin according to the invention for the raw materials used for processing, take wood of various breeds with high density; prepare material is cut into chips or small bars, allowed the use of sawn timber or waste. The prepared material is loaded into a chemical reactor, lined on the inside with a non-metallic acid-resistant materials, heat-insulated on the outside, equipped with irrigation and filtration devices, air ducts for barbatia warm air ducts for the supply of chemicals, water and draining of the liquid-phase environments at the treatment facility. The way in isothermal conditions, at elevated pressure and temperature is as follows.

The method of obtaining basics of composite corrosion of paint is rabochego material rust includes the use as raw material pre-cut wood with a high density, which is subjected to the hydrolysis of 0.5-0.8%sulfuric acid solution, washing and extraction of the hydrolysate, his ammonolysis of the solution based on the following ratio of components, wt.%:

20-25%solution of ammonium hydroxide - 60,0-70,0;

0.5 to 2.0%solution of sodium citrate - 10,0-14,0;

0.1 to 1.0%solution of sodium hydroxide - 10,0-13,0;

1,0-5,0%solution of sodium citrate - 10,0-13,0.

Otherwise the ratio of the components of the solutions in terms of 100% substance, wt.%, can be expressed as follows:

the ammonium hydroxide - 12,0-17,5;

sodium citrate is 0.06 to 0.28;

sodium hydroxide is 0.01 to 0.13;

citrate sodium from 0.01 to 0.65;

water - the rest,

repeated washing and wringing AMMONIATING product separation into fractions, drying of the product to 5-15% moisture content. The hydrolysis is mainly carried out at a water ratio of 1:(20-15), at a temperature of 200-250°C and a pressure of 10-12 kg·s/cm2within 4-6 hours. Mainly the ammonolysis is carried out at a water ratio of 1:(2-6)at a temperature of 100-180°C. and a pressure of 4-6 kg·s/cm2within 2-6 hours. Activation and mechanochemical process is carried out by processing in the apparatus with a vortex layer of ferromagnetic particles in a liquid medium, comprising electroactivated alkaline water and the solution complexone 3 (disodium salt ethylendiaminetetraacetic acid). This product serves portions in the working chamber of the apparatus with the vortices is the combat layer of ferromagnetic particles, intended for carrying out liquid-phase chemical processes with non-metallic working surface lined and equipped with ferromagnetic particles, also paired pipeline classifier of the processed material. Processing apparatus with a vortex layer of ferromagnetic particles is performed sequentially classifying material particle size to optimize the process.

Activation of the material is carried out in the presence of a mixture of 20-25%aqueous solution of ammonium hydroxide, amine additives and catalyst reaction, based on the following ratio of components, wt.%:

the basis of anti-corrosion material - 80,0-90,0;

20-25%solution of ammonium hydroxide - 5,0-15,0 (or in terms of 100% substance ammonium hydroxide - 1,0-3,75, the rest is water);

amine additive is 0-4,0;

catalyst - 1,0-2,0.

The resulting composition is ground and activate using and 10 parts of dry material, and 1 part of a mixture of solutions of the following composition, based on the ratio of components, wt.%:

20-25%solution of ammonium hydroxide - 40,0-60,0 (or in terms of 100% substance ammonium hydroxide - 10,0-12,0, the rest is water);

amine additives - 35,0-50,0;

catalysts - 5,0-10,0,

at normal pressure and a temperature of 100-150°C to achieve the moisture content of the finished product 5-15% and particle size of the material 1-10 microns.

In to the amount of amine additives mainly use a mixture of monoethanolamine, Ethylenediamine and polyethylenepolyamine, based on the following ratio of components, wt.%:

monoethanolamine - 60,0-70,0;

the polyethylenepolyamine - 25,0-30,0;

the Ethylenediamine - 5,0-10,0.

As a catalyst mainly use 0,5-4,0%solution complexone 3 (disodium salt ethylendiaminetetraacetic acid). As catalysts predominantly use 0,5-4,0%solution complexone 3 (disodium salt ethylendiaminetetraacetic acid) and trehzameshchenny the ammonium phosphate in equal shares. The grinding product is carried out by processing in the apparatus with a vortex layer of ferromagnetic particles in a liquid medium, comprising electroactivated alkaline water and the solution complexone 3 (disodium salt ethylendiaminetetraacetic acid).

The processed product serves on the classification, extraction and drying; dry the material to a moisture content of 5-15%, by classifying fractions for the efficiency of the process and selection of large fractions of the material for further processing and production of sorption materials "Rusta". The dried material serves in the working chamber of the ball mill, lined with non-metallic materials non-metallic grinding bodies, equipped with a cooling jacket and a device for unloading dry powder formulations, as well as a pipeline for feeding material to the processing in cameras the apparatus with a vortex layer of ferromagnetic particles. Processing, pre-grinding and activation of the material produced in the working chamber of the ball mill in the presence of a 20-25%aqueous solution of ammonium hydroxide, amine additives and catalyst reactions. The treatment is carried out at normal temperature and pressure for 10 to 16 hours after which the resulting material is discharged and fed into the working chamber of the apparatus with a vortex layer of ferromagnetic particles, intended for grinding and activation of dry bulk materials. Grinding and activation of the material obtained in the chamber of the apparatus with a vortex layer of ferromagnetic particles having a non-metallic working surface lined and equipped with ferromagnetic particles is carried out at normal temperature and pressure, in the presence of activators of the reaction, the reaction batch is served in the reaction material mixture solution of ammonium hydroxide, amine additives and catalysts. The mixture of solutions is served in each settlement the portion of material that is processed in the working chamber of the apparatus with a vortex layer of ferromagnetic particles, based on the ratio (the portion of the dry material mixture solutions) - (10:1); the treatment is carried out at normal pressure and a temperature of 100-150°C for 5-30 minutes, controlling the dispersion of particles of the material and its moisture until the moisture content is ready what about the product 5-15% and particle size of the material 1-10 microns.

The finished material "Rusta-M" tightly Packed in moisture resistant containers and portions served for subsequent operations.

A method of obtaining a composite anti-corrosion material, paint over the rust using the framework includes the following.

A method of obtaining a composite anti-corrosion material, paint over the rust on the base, obtained as described above, includes obtaining a mixture of the binder and the basics of composite anti-corrosion material, paint over the rust, on the basis of the following ratio of components, wt.%:

binder - 85,0-95,0;

base - 5,0-15,0,

followed by the mechanical activation and dispersion make composition with pigments fillers; treated in the chamber of the apparatus with a vortex layer of ferromagnetic particles; colruyt, dilute with solvent-diluents; served on the bottling and packaging.

As the binder used various varnishes, resins, polymers, their compositions in a mixture with solvents and/or diluents. As pigments and fillers use a variety of pigments, fillers and special additives used in the paint industry to create a corrosion protective paint materials.

As the binding/film forming on izopet is the use of varnishes/resin semi-finished products for the paint industry, for example, alkyd-styrene intermediate composition designed to produce corrosion-resistant coatings on metal. As pigments and fillers according to the invention are used, for example, oxide red, pigment red JO (redoxide), titanium dioxide pigment (item attached). As additives are, for example, desiccant octane, Aerosil (item attached). As solvents/diluents are used, the solvents used in the paint industry for this type binders such as alkyd-styrene intermediate composition.

The ratio according to the invention these components, varnishes, resins, polymers and their compositions in a mixture with solvents and/or diluents, pigments, fillers and additives used according to the invention, based on the following ratio of components, wt.%:

binder/film-forming - 45;

pigments, fillers, driers and other additives - 40;

active ingredients "Rusta" - 3-8;

solvents/thinners - 7-12.

As wood according to the invention is used, for example, wood of conifers.

The mechanical activation and dispersion make mainly carried out in the chamber ball mill for 8-12 hours and the processing in the camera apparatus with a vortex layer of ferromagnetic particles is carried out in 10-20 min is so

On specialized equipment, such as high-speed anchor the faucet with non-metallic coating reactor, prepare a mixture of a binder (film-forming) paint material and material "Rusta-M", of the following composition, in mass %: binder (foaming agent) - 85-95; material "Rusta-M - 5-15. As a binder (agent) use various varnishes, resins, polymers and their compositions in a mixture with solvents (diluents), depending on the formulation approved for production.

The finished mixture is fed into the working chamber of the ball mill, lined with non-metallic materials non-metallic grinding bodies, equipped with a pipe for supply of the finished material to the processing in the camera apparatus with a vortex layer of ferromagnetic particles, the mixture is treated within 6-10 hours, then served on the pipeline in the camera apparatus with a vortex layer of ferromagnetic particles. In the working chamber of the apparatus with a vortex layer of ferromagnetic particles, the mixture is treated within 10-20 minutes, then finish the song "Rusta-S" serves for subsequent operations. Ball mill, lined with non-metallic materials non-metallic grinding bodies, serves the song "Rusta-S", then submit the approved formulation for this type of composition "Rusta-S" calculation amount will fill the lei, pigments, special additives. Material handle for 8-12 hours. The resulting material is fed to the tinting, dilution solvents (diluents), quality control, bead mill, high speed mixers, according to the formulations approved for each type of material "Rusta".

The finished material "Rusta" served on the bottling line and packaging for commercial products - corrosion-resistant composite material, paint the rust "Rusta".

As raw material for production of the active component "Rusta-M" use of organic materials of plant origin, such as wood of various breeds with high density, pre - cut into chips or small bars, allowed the use of sawn timber or waste. These materials contain a diverse group of agents capable of complexing, namely polyphenolic - flavonoids, catechins, anthocyanins, tannins and other substances capable of binding metal ions in chelate complexes.

During acid hydrolysis of this substrate is complete hydrolysis of polysaccharides (cellulose), pantisano and most of the reducing substances, the formation of soluble lignohumic and fulvic acids. With the erosion of their liberation which are stated pores in the matrix of likestructure material. The resulting acid hydrolysis of the material has a pronounced surface-active and sorption capacity, which allows its use as an effective anti-corrosive component - component coatings.

During the subsequent ammonolysis of the material obtained in the presence of sodium citrate sodium hydroxide, sodium citrate, the activation of the matrix material structure, the creation of additional carboxyl and attaching amine groups, the liberation of pores in the leaching of these salts of humic and fulvic acids, dissolved ammonium salts and low molecular weight fragments of material, which greatly increases its ion-exchange capacity. Complex selected reagents promotes more active completion of the reaction, binding to soluble complexes impurities, contributing to the liberation of pores and increase internal sorption material surface.

Subsequent processing of the received material in the chamber of the apparatus with a vortex layer of ferromagnetic particles in a solution of water electroactivated alkali, in the presence of complexone 3 (disodium salt ethylendiaminetetraacetic acid), leads to the complete removal of soluble organic and inorganic fragments of the matrix material filling the pores and block F. the purpose ground receiving stations group; leads to the removal of cationic impurities matrix material, partially introducing reagent used in the internal structure of the macromolecule substances, contributing to the formation of the Central atom, ion exchange, coordination bonds, under the influence of the electromagnetic field of the vortex layer of ferromagnetic particles significantly increases the velocity of a chemical reaction, the activation of the particles due to the deformation of the crystal lattice of molecules in the material and a sharp increase in chemical activity, the degree of dissociation of the material.

Application of the apparatus with a vortex layer of ferromagnetic particles in complex with a ball mill lined with non-metallic materials, can significantly increase the productivity of the process, to translate it from a loop in the continuous lower energy and greatly reduce the time of mechanochemical activation of the material.

The ratio of the reaction components, amine additives selected from the group of products containing amines, set research and is caused by the requirement to increase the nitrogen content of active constituent material "Rusta-M", for the neutralization of residues, ions of acids and to improve surface-active skills-active component material "Rusta".

The act is about creating the song "Rusta-S" "paint binder (foaming agent) - active component - based "Rusta-M"" due to the reactivity of the material "Rusta-M"creating a stable complex connection with low-molecular and/or high-molecular resins, varnishes, substances, which is the binder in paint and varnish materials. The presence of fillers, pigments and other components of the paint material at the stage of the activation process and dispersion composition "Rusta-S" premature and inappropriate. In the process of obtaining the final product "Rusta" - corrosion-resistant composite material, paint the rust "Rusta" - it should be considered a high activity material and material components to create complex chemical bonds with metal surfaces and parts, machinery and equipment. Therefore, all contact with the materials "Rusta" chemical reactors, machines, mixers and other equipment must be lined/coated with non-metallic coatings.

From the given data complete method of obtaining a comprehensive anti-corrosion material, paint over the rust and the sorption material "Rusta" it follows that the method of receiving according to the invention has advantages over known methods, and specifically to: receive a unique anti-corrosive paint composition active sorption material-based "RustaM" - composite material "Rusta-S - paint-and-lacquer material "Rusta""; maximum mechanization of the manufacturing process of the material; a significant reduction in time of receipt of material and energy consumption for the conduct process, and as a result obtaining high-quality anticorrosive paint of the complex material on rust "Rusta", their performance superior to known materials. With regard to the possibility of obtaining materials "Rusta" on the basis of cheap, large-capacity waste industry production has a great potential.

1. The method of obtaining basics of composite anti-corrosion material, paint over the rust, including use as raw chopped wood with high density, which is subjected to the hydrolysis of 0.5-0.8%sulfuric acid solution, washing and extraction of the hydrolysate, held by ammonolysis of a mixture of solutions in terms of 100% substance, wt.%:

the ammonium hydroxide12-17,5
sodium citrate0,06-0,28
sodium hydroxideof 0.01 to 0.13
citric acid sodium,01-0,65
waterrest

repeated washing and wringing AMMONIATING product separation into fractions, drying the product to 5 -15% moisture content;
activation of the material in the presence of a mixture of 20-25%aqueous solution of ammonium hydroxide, amine additives and catalyst reaction, based on the following ratio of components, wt.%:
the basis of anti-corrosion material80,0 to 90.0
ammonium hydroxide (in terms of 100% substance)5,0-15,0
amine additives3,0-4,0
catalyst1,0-2,0
waterrest

with subsequent grinding and activation using 10 parts of the dry material and 1 part of a mixture of solutions of the following composition based on the ratio of components, wt.%:
5,0-10,0
ammonium hydroxide (in terms of 100% substance)10,0-12,0
amine additives35,0-50,0
catalysts
waterrest

at normal pressure and a temperature of 100-150°C to achieve the moisture content of the finished product 5-15% and particle size of the material 1-10 microns.

2. The method according to claim 1, wherein the hydrolysis is carried out at a water ratio of 1:(20-15) at a temperature of 200-250°C and a pressure of 10-12 kg·s/cm2within 4-6 hours

3. The method according to claim 1, wherein the ammonolysis is carried out at a water ratio of 1:(2-6) at a temperature of 100-180°C. and a pressure of 4-6 kg·s/cm2within 2-6 hours

4. The method according to claim 1, in which the activation and mechano-chemical processes carried out by the processing apparatus with arevim layer of ferromagnetic particles in a liquid medium, comprising electroactivated alkaline water and the solution complexone 3 (disodium salt ethylendiaminetetraacetic acid).

5. The method according to claim 1, in which the amine additives, a mixture of monoethanolamine, Ethylenediamine and polyethylenepolyamine, based on the following ratio of components, wt.%:

monoethanolamine60,0-70,0
the polyethylenepolyamine25,0-30,0
the Ethylenediamine5,0-10,0

6. The method according to claim 1, in which the catalyst used is form 0.5 to about 4.0%solution complexone 3 (disodium salt ethylendiaminetetraacetic acid).

7. The method according to claim 1, in which the catalysts used 0,5-4,0%solution complexone 3 (disodium salt ethylendiaminetetraacetic acid) and trehzameshchenny the ammonium phosphate in equal shares.

8. A method of obtaining a composite anti-corrosion material, paint over the rust on the base according to claim 1, comprising obtaining a mixture of the binder and the basics of composite anti-corrosion material, paint over the rust, on the basis of the following ratio of components, wt.%:

binder85,0-95,0
base5,0-15,0

followed by a mechano-activation and dispersion make composition with pigments, fillers, processed in the chamber of the apparatus with a vortex layer of ferromagnetic particles, colruyt, dilute with solvent-diluents, served on the bottling and packaging.

9. The method of claim 8 in which the binder substance use various varnishes, resins, polymers and their compositions in a mixture with solvents and/or diluents.

10. The method according to claim 8, in which the mechano-activation and dispersion make spend in the chamber ball mill for 8-12 h and processing in the camera apparatus with a vortex layer of ferromagnetic particles Prov is completed in 10-20 minutes



 

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17 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: lignin-carbohydrate material (LCM) is treated with sodium hydroxide (NaOH) in molar ratio of OH groups of LCM: NaOH equal to 1:1 at temperature 60°C for 120 minutes. Sodium monochloroacetate is then added in molar ratio of OH-groups of the LCM: ClCH2COONa equal to 1:0.5 and trichloroacetic acid (Cl3CHCOOH) is added in molar ratio of OH groups of LCM: Cl3CHCOOH equal to 1: (0.025-0.6). The reaction mixture is held for 60 minutes at 60°C. The obtained product is washed with ethanol which is acidified with mineral acid and dried in air. The obtained product is characterised by high content of carboxyl groups and viscosity of alkaline solutions.

EFFECT: obtained carboxymethyl ether can be used in different fields, for example, as a reagent for drilling oil and gas wells, for stabilising mortar in the construction industry, as chemical reagents during floatation and in mining and processing industry.

1 tbl, 9 ex

FIELD: chemistry.

SUBSTANCE: birch bark from which bast fibre has been removed is crushed. Alkali and a mixture of isobutyl alcohol and water are then added. The reaction mass is then heated at boiling point for 2 hours. Use of isobutyl alcohol in the azeotropic mixture enables to obtain a hot reaction solution in form of a two-phase system. The reaction solution is separated by settling or separation on an organic alcohol-water and water-alcohol layer. Betulin is extracted from the alcohol-water layer through two-step crystallisation with intermediate evaporation. Suberin is obtained from the water-alcohol layer by distilling alcohol and evaporating the aqueous solution.

EFFECT: method simplifies the technique of extracting betulin and suberin from birch bark with high quality of the end products.

1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: method involves extraction of betulin from birch bark using methyl tert-butyl ether. The bark is the treated with aqueous NaOH solution. The aqueous alkaline solution discharged from the birch bark for extracting suberic acids is treated with sulphuric acid solution. Purification of betulin from impurities in an organic extract is carried out via concentration followed by hot washing with NaOH solution and then with water, while simultaneously distilling residual methyl tert-butyl ether from the betulin. The method enables to obtain betulin and suberic acids without additional purification steps.

EFFECT: environmental safety and cost effectiveness.

2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to production of powdered cellulose from cellulose materials. The method involves breaking down cellulose material using a Lewis acid solution and an organic solvent while stirring. The breakdown process takes place at low concentration of the Lewis acid solution using a minimal amount of organic solvent. The product is washed and dried. The cellulose material used is different types of lignocellulose materials obtained from semi-finished wood products which are obtained during processing thereof at paper mills, straw of grain crops and waste paper material.

EFFECT: obtained powdered cellulose has high chemical reactivity and can be used in analytical chemistry, cosmetic and pharmaceutical industry, to modify cellulose and lignocellulose materials and when producing derivatives thereof for special purposes.

2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to catalytic processes. Described is a method for synthesis of a catalyst for oxidative cracking of organic material, including biomass, involving heating water containing 1-10% lower alcohol to 58-75°C, adding FeCl3×6H2O and soda with weight ratio of iron chloride to soda of 1.5-80, holding the aqueous solution at temperature of 58-75°C for at least 10 minutes while stirring and leaving the aqueous solution until complete precipitation of Fe3+. Described is use of a catalyst obtained using said method for oxidative cracking of organic material.

EFFECT: high catalyst activity.

14 cl, 8 ex

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