Method of producing finely dispersed liquid form of phthalocyanine catalyst for demercaptanisation of oil and gas condensate

FIELD: chemistry.

SUBSTANCE: invention relates to a method of obtaining a finely dispersed liquid form of a phthalocyanine catalyst for demercaptanisation of oil and gas condensate, which includes successive precipitation, in an aqueous medium, of products of sulphonation of cobalt phthalocyanine or chlorine-substituted derivatives thereof and cobalt phthalocyanine adducts or chlorine-substituted derivatives thereof with sulphuric acid - "sulphates" to form a mixture of disulphonic acids of cobalt phthalocyanine or chlorine-substituted derivatives thereof and finely dispersed cobalt phthalocyanine particles and chlorine-substituted derivatives thereof. The next treatment of the aqueous paste of the obtained mixture with alkanolamines results in dissolution, in water, of disulphonic acids of cobalt phthalocyanine or chlorine-substituted derivatives thereof and partial adsorption on the surface of particles of cobalt phthalocyanine or chlorine-substituted derivatives thereof to form a stable finely dispersed liquid form of the catalyst.

EFFECT: method of producing a catalyst for demercaptanisation of oil and gas condensate in a stable liquid form, with high catalytic activity, which avoids the need for preparation thereof by the consumer, improves labour conditions for the producer and the consumer of the product.

1 tbl, 4 ex

 

The invention relates to a method for producing finely dispersed liquid forms phthalocyaninato catalyst sweetening of oil and gas condensate, the essence of which lies in the sequential deposition in the aquatic environment products of sulfonation phthalocyanine cobalt or chlorine substituted derivatives and adducts of cobalt phthalocyanine or chlorine substituted derivatives of sulfuric acid - sulfate" with the formation of a mixture of disulfonated phthalocyanine cobalt or hazledene derivatives and nano-sized particles of cobalt phthalocyanine or chlorine substituted derivatives. Post-treatment water paste mixture by alkanolamine leads to dissolution in water disulfonated phthalocyanine cobalt or chlorine substituted derivatives and their partial adsorption on the surface of the nanoparticles of florianna cobalt or chlorine substituted derivatives with the formation of stable finely dispersed liquid forms of the catalyst.

The implementation of this method allows us to simplify the process of application of the catalyst in comparison with the known catalysts, to increase its stability and aggregate stability.

The invention relates to the chemical industry, in particular the production of catalysts on the basis of the phthalocyanine derivatives of cobalt, used in% SSH liquid-phase oxidative demercaptanization of oil and gas condensate.

It is known that the increased activity of the catalysts of oxidative demercaptanization based on sulfonated phthalocyanine cobalt increases when applying them in the form of differently charged ion associates. Thus, according to patent (U.S. Pat. U.S. No. 4923596, IPC5C10G 27/10, op. 08.05.1990 g) catalyst efficiency is improved by the introduction of the alkaline solution of the catalyst synergistic additives, which are used Quaternary ammonium salts. Despite the high catalytic activity of this composition in the reaction of oxidative demercaptanization, its main disadvantage is the low activity in extraction processes, due to the limited solubility in aqueous medium obtained according to this method of ion associates of the catalyst Quaternary ammonium salts.

The closest in technical essence and the resulting effect is a catalyst comprising a molecular ion associat based on the derivatives of phthalocyanine cobalt with differently charged substituents in phthalocyaninato core (U.S. Pat. RU # 2381067, IPC C09B 47/00, C10G 27/10, op. 21.10.2008,). The main disadvantage of the proposed catalyst is the complexity of the chemical structure and the need for multi-stage processes of chemical synthesis to receive them. In addition, the catalyst, not only is em a powder form components that requires a special scheme for the preparation of the catalyst complex neftepererabatyvayuschim the company.

The purpose of this invention was to develop a method of producing catalyst sweetening of oil and gas condensate in a stable liquid form, with high catalytic activity, eliminating the need of its preparation by the consumer, improving working conditions from the manufacturer and from consumer products.

This goal is achieved by a method, the essence of which lies in the sequential deposition of water products of sulfonation phthalocyanine cobalt or chlorine substituted derivatives of the oleum and adducts of cobalt phthalocyanine or chlorine substituted derivatives of sulfuric acid - sulfate" with the formation of a mixture of disulfonated phthalocyanine cobalt or chlorine substituted derivatives and fine particles of cobalt phthalocyanine or chlorine substituted derivatives. Post-treatment water paste mixture by alkanolamine leads to dissolution in water disulfonated phthalocyanine cobalt or chlorine substituted derivatives with the formation of alkanolammonium salts and their partial adsorption on the surface of the fine particles of the phthalocyanine cobalt or chlorine substituted derivatives with the formation of stable fine W is dcoi form of the catalyst.

To obtain alkanolammonium salts disulfonated phthalocyanine cobalt and chlorine substituted derivatives use alkanolamine General formula:

(CH3-)mN(-CH2-CH2-OH)3-mwhere m=0-2.

Stabilization of rheological characteristics and resistance to sedimentation of the catalyst is carried out by introducing at the final stage of linear polyesters (polyethylene glycols).

The positive effect of the application of the present invention is expressed in the following:

- the catalytic composition is a homogeneous fluid, not altering the viscosity over time;

- excluded technological scheme of the preparation of solutions of catalyst required concentration among consumers;

- improve working conditions by eliminating dust in the premises of the manufacturer and the consumer;

- significantly reduced the energy intensity of production.

All samples obtained by the proposed method of catalyst were tested with a positive result on a standard approved method: "the Method of measurement of the rate constants of the reaction of oxidation of mercaptide sodium in the presence of catalyst Ywcas", certified by the Federal state unitary enterprise all-Russian research Institute of flow measurement (Certificate No. 97106-02 05.12.2002 g) in comparison with known industrial catalysts. The data is shown in table.

The way to obtain finely dispersed liquid forms phthalocyaninato catalyst sweetening of oil and gas condensate is illustrated by the following examples.

Example 1. In a laboratory mixer with Z-shaped blades load of 100 g of cobalt phthalocyanine and with stirring, add 110 g of 98%sulfuric acid. The mass is stirred until the formation of the green powder "sulfate" phthalocyanine cobalt, which is unloaded and stored in airtight containers for further use. Sulfones obtained by sulphonation 400 g of phthalocyanine cobalt 1200 ml of 20%oleum at a temperature 97-101°C for 2 hours, emit 11.2 l of water at a temperature not exceeding 40°C. To the resulting suspension of dissolvability phthalocyanine cobalt with vigorous stirring add the powder "sulfate" phthalocyanine cobalt from the previous stage. The mass is stirred for 3 hours at a temperature of 35-40°C, check for the absence of nepravitelstvennie "sulfate" monochlorotoluene cobalt viewing samples under a microscope, filtered, washed 8-8,2 l of 3%aqueous hydrochloric acid solution and 2 l of cooled water. Get water paste containing a mixture of 100 g of cobalt phthalocyanine and 500 g dissolvability phthalocyanine cobalt. Pasta is loaded into the mixer with Z-shaped blades and while mixing, slowly p is ibullet 450 g of triethanolamine and 50 g of polyethylene glycol PEG-13 (M.M. 600), stirred for 1 hour and poured the finished product in the packaging. The output of the finished product, counting on phthalocyanine cobalt, is 97.5%.

Example 2. In a laboratory mixer with Z-shaped blades load of 100 g of monochlorotoluene cobalt and with stirring, add 115 g of 98%sulfuric acid. The mass is stirred until the formation of the green powder "sulfate" monochlorotoluene cobalt, which is unloaded and stored in airtight containers for further use. Sulfones obtained by sulphonation 420 g of monochlorotoluene cobalt 1200 ml of 20%oleum at a temperature 97-101°C for 2 hours, emit 11.2 l of water at a temperature not exceeding 40°C. To the resulting suspension of dissolvability of monochlorotoluene cobalt with vigorous stirring add the powder "sulfate" monochlorotoluene cobalt from the previous stage. The mass is stirred for 3 hours at a temperature of 35-40°C, check for the absence of nepravitelstvennie "sulfate" monochlorotoluene cobalt viewing samples under a microscope, filtered, washed 8-8,2 l of 3%aqueous hydrochloric acid solution and 2 l of cooled water. Get water paste containing a mixture of 100 g of monochlorotoluene cobalt and 504,3 g dissolvability of monochlorotoluene cobalt. Pasta is loaded into the mixer with Z-shaped love the authorities and while mixing, slowly add 350 g of triethanolamine and 25 g of polyethylene glycol PEG-35 (mm 1500), stirred for 1 hour and poured the finished product in the packaging. The output of the finished product, considering monochlorotoluenes cobalt, is 96%.

Example 3. In a laboratory mixer with Z-shaped blades load of 100 g of Dichlorotoluene cobalt and with stirring, add 123 g of 98%sulfuric acid. The mass is stirred until the formation of "sulfate" Dichlorotoluene cobalt, which is unloaded and stored in airtight containers for further use. Sulfones obtained by sulphonation USD 448,2 g Dichlorotoluene cobalt 1200 ml of 20%oleum at a temperature 97-101°C for 2 hours, emit 11.2 l of water at a temperature not exceeding 40°C. To the resulting suspension of dissolvability of Dichlorotoluene cobalt with vigorous stirring add the powder "sulfate" Dichlorotoluene cobalt from the previous stage. The mass is stirred for 3 hours at a temperature of 35-40°C, check for the absence of nepravitelstvennie "sulfate" Dichlorotoluene cobalt viewing samples under a microscope, filtered, washed 8-8,5 l of 3%aqueous hydrochloric acid solution and 2 l of cooled water. Get water paste containing a mixture of 100 g of Dichlorotoluene cobalt and 540, 6L g dissolvability of Dichlorotoluene cobalt. Pasta is loaded into the mixer with Z-shaped blades and peremeshivaemogo add 211 g methyldiethanolamine and 54.1 g of polyethylene glycol PEG-13 (M.M. 600), stirred for 1 hour and poured the finished product in the packaging. The output of the finished product, considering dichlorofluorene cobalt, 96.5%.

Example 4. In a laboratory mixer with Z-shaped blades load of 100 g of Dichlorotoluene cobalt and with stirring, add 123 g of 98%sulfuric acid. The mass is stirred until the formation of "sulfate" Dichlorotoluene cobalt, which is unloaded and stored in airtight containers for further use. Sulfones obtained by sulphonation USD 448,2 g Dichlorotoluene cobalt 1200 ml of 20%oleum at a temperature 97-101°C for 2 hours, emit 11.2 l of water at a temperature not exceeding 40°C. To the resulting suspension of dissolvability of Dichlorotoluene cobalt with vigorous stirring add the powder "sulfate" Dichlorotoluene cobalt from the previous stage. The mass is stirred for 3 hours at a temperature of 35-40°C, check for the absence of nepravitelstvennie "sulfate" Dichlorotoluene cobalt viewing samples under a microscope, filtered, washed 8-8,5 l of 3%aqueous hydrochloric acid solution and 2 l of cooled water. Get water paste containing a mixture of 100 g of Dichlorotoluene cobalt and 540, 6L g dissolvability of Dichlorotoluene cobalt. Pasta is loaded into the mixer with Z-shaped blades and under stirring m is Glenna add 200 g of dimethylethanolamine and 54.1 g of polyethylene glycol PEG-9 (mm), stir for 1 hour and poured the finished product in the packaging. The output of the finished product, considering dichlorofluorene cobalt, 96.5%.

№ p/pDerived phthalocyanine cobalt (FC)# exampleContent production. FC %Catalytic. activity s-1Specific activity, s-1
123456
Industrial catalysts
1Disulfonate FC (powder)5015·10-430·10-4
2Disulfonate FC (liquid)158·10-453·10-4
3Disulfonate dichloro-FC (powder)5020·10-440·10-4
4Disulfonate monochlor-FC (powder)6021·10-435·10-4
Samples of the proposed method
5Disulfonate FC + FC1159·10-460·10-4
6Disulfonate monochlor-FC + monochlor-FC21512·10-480·10-4
7Disulfonate dichloro-FC + dichloro-FC31515·10-4 100·10-4
8Disulfonate dichloro-FC + dichloro-FC41514·10-493·10-4

The way to obtain finely dispersed liquid forms phthalocyaninato catalyst sweetening of oil and gas condensate based on the derivatives of phthalocyanine cobalt and chlorine substituted products, characterized in that the resulting sulphonation phthalocyanine cobalt or chlorine substituted derivatives oleum sulfones and the resulting adduct sulfuric acid sequentially precipitated with water with formation of a mixture of disulfonated phthalocyanine cobalt or chlorine substituted derivatives and fine particles of cobalt phthalocyanine or chlorine substituted derivatives with subsequent transfer of desulfation in the solution treatment alkanolamine General formula: (CH3-)mN(-CH2-CH2-OH)3-mwhere m=0-2, and stabilization of the liquid form of the catalyst linear polyesters (polyethylene glycols).



 

Same patents:

FIELD: chemistry.

SUBSTANCE: claimed is a method of preparing a heterogeneous phthalocyanine catalyst for oxidation of sulphur-containing compounds by an activation of non-woven lavsan by microwave radiation with a frequency of 2450 MHz, power 500-2000 W for 3-15 minutes, processing the activated material in a solution of cobalt tetra-4-[(4'-carboxy)phenylsulpfanyl]phthalocyanine with a concentration of 0.2-0.6 g/l for 2-4 hours and further stand of the material in a sodium hydroxide solution at pH 8.0-8.5 for 40-80 minutes.

EFFECT: increased catalytic activity of the target product and simplification of the method of its preparation.

1 tbl

FIELD: chemistry.

SUBSTANCE: described is a method of producing a nanostructured catalyst for demercaptanisation of oil and gas condensate based on cobalt phthalocyanine derivatives and chlorine-substituted products thereof, wherein starting phthalocyanines obtained by grinding in a ball mill at 100-120°C in the presence of alcohols of general formula R-(OCH2- CH2)n-OH, where if n=1 R=C6H5, C4H9; if n=2 R=H, C2H5, nanoparticles of cobalt phthalocyanine and chlorine-substituted derivatives thereof are treated with concentrated aqueous solutions of alkanolammonium salts of disulphonic acids of cobalt phthalocyanine and chlorine-substituted derivatives thereof, followed by stabilisation of the catalyst with linear polyesters (polyethylene glycols).

EFFECT: high catalyst activity.

2 cl, 5 ex

FIELD: oil and gas industry.

SUBSTANCE: invention refers to sulphoxidation method of hydrocarbons, which involves hydrocarbon flow including at least one sulphur compound; oxidiser; catalyst including the metal compound represented with general formula MmOm(OR)n; and bringing into contact of hydrocarbon flow with oxidiser in presence of catalyst, thus causing the oxidation of at least one sulphur compound, where M represents metal complex, R represents carbon group having at least 3 carbon atoms, where at each occurrence of R, the latter represents a replaced alkyl group containing at least one OH group, replaced cycloalkyl group containing at least one OH group, replaced cycloalkylalkyl group containing at least one OH group, replaced heterocyclyl group containing at least one OH group, or heterocyclylalkyl containing at least one OH group, subindices "Type" represent integer numbers of approximately 1 to approximately 8. Invention also refers to other methods of sulphoxidation of hydrocarbons, polymer catalytic composition for sulphoxidation of hydrocarbons, which catalyses sulphoxidation to hydrocarbon sulphoxidation reagent.

EFFECT: economic and effective catalytic desulphurisation of sulphur-containing flows of hydrocarbons.

42 cl, 12 dwg, 12 tbl, 48 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a catalytic composition containing disulphonic acid of cobalt phthalocyanine or chloro- and oxy-substituted derivative thereof, an alkaline agent, a synergetic additive and water, wherein the alkaline agent used is alkanolamine of formula (CH3)n-N-(CH2-CH2-OH)3-n where n=0-2, and the synergetic additive used is a linear (polyethylene glycol) or cyclic (crown ether) polyether, with the following ratio of components in wt %: disulphonic acid of cobalt phthalocyanine or chloro-and oxy-substituted derivative thereof 15-25, alkanolamine 7-25, polyethylene glycol or crown ether 0.5-4, water - up to 100.

EFFECT: high specific catalytic activity in demercaptanisation processes.

7 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a method of removing hydrogen sulphide and mercaptants from oil and gas condensate by treating starting material with 5-30% aqueous solution of hydrogen peroxide, taken in amount of 3-8 kg per ton of the material, at temperature 10-30°C and pressure of up to 1.5 MPa, in the presence of a catalyst, characterised by that the catalyst used is bis-sulphoxides of molybdenum peroxocomplexes, where the catalyst is taken in amount of 0.01-0.05 g per ton of oil or gas condensate and is added to the material inform of a solution in aqueous solution of hydrogen peroxide.

EFFECT: avoiding use of expensive and scarce activating additives, less amount of the catalyst used, high degree of purity of material from hydrogen sulphide and mercaptants.

14 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a method of purifying hydrocarbon fractions from mercaptans by treating raw material with air in the presence of a catalyst - copper complex in form of a complex of formula CuIICl1-2(L)1-2, where L is hydroxyalkylpyridine of general formula CnH2n(OH)C5H4N, where n=2-4.

EFFECT: simplification of purification technology owing to preparation of synthetic catalyst which enables to carry out demercaptanisation in the absence of a water alkali.

2 cl, 20 ex, 3 tbl

FIELD: oil and gas production.

SUBSTANCE: hydrogen sulphide containing oil (see Fig.1) is supplied in a charge separator 2 equipped with a gas bubbler flask 4 where due to pressure reduction and hydrocarbon gas blowing and/or exhaust air, desorption removal of a portion of hydrogen sulphide is observed. Partially refined oil with the introduced oxidation catalyst (see positions 5-10) is supplied by a pump 12 to a reactor 15 where it is additionally purified from hydrogen sulphide and light mercaptan due to their oxidation by introduced air. The reaction mixture is supplied in the high pressure separator 16 ensuring partial separation of exhaust air due to pressure reduction to 0.2 MPa which from the top of the separator is supplied through the gas bubbler flask 4 in the charge separator 2 for blowing hydrogen sulphide from oil. Further it is supplied in the low pressure separator 22 wherefrom the refined and degassed oil is supplied in the first buffer reservoir 25. After filling, oil from the separator is supplied to parallel second reservoir 26, and the filled reservoir 25 is settled for at least 3 hours for water sediment containing water-soluble products of hydrogen sulphide oxidation. In the other version of installation (see Fig.2) the oil refined from hydrogen sulphide, with the pump 27 is supplied in electrodehydrator 30 for separation of emulsion water and salts.

EFFECT: invention allows reducing the concentration of total sulphur, water, salts and products of hydrogen sulphide oxidation in commodity oil and reducing expenses for installation operation.

15 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: described is a catalyst for oxidative demercaptanisation of oil and oil products which is a derivative of phthalocyanine, distinguished by that it is a supramolecular ion-associate of oppositely charged phthalocyanines with structural formula I, I:(R+)nPcM, where R=-CH2N+(CH3)2CH2CH2OHCl- (choln- PcM), n=2÷8, M=Co, Fe; (pymn-PcM), n=2÷8, M=Co, Fe; (R-)nPcM, where R=-CH2P(=O)(O-Na+)2(phosn-PcM), n=8, M-Co and II, II:(R-)nPcM, where R=R1=R2=-C(O)O-Na+ (carb8-PcM), n=8, M=Co, Fe; R=R1=-C(O)O-Na+, R2=H (carb4-PcM), n=4, M=Co; R= R1=-S(O)2O-Na+ , R2=H (sul4-PcM), n=4, M=Co. Also described is a method of oxidative catalytic demercaptanisation of oil and oil products with atmospheric oxygen in an alkaline medium in the presence of the above described catalyst at room temperature.

EFFECT: carrying out the process in mild conditions with high substrate conversion to 98 percent.

3 cl, 2 tbl, 26 ex

FIELD: chemistry.

SUBSTANCE: invention relates to self-organising supramolecular ion-associates of oppositely charged phthalocyanines and their use for oxidising sodium sulphide. A catalyst for oxidising sodium sulphide is described, where the said catalyst is a phthalocyanine derivative and is distinguished by that, it is a supramolecular ion-associate of oppositely charged phthalocyanines with structural formula I, I:(R+)nPcM, where R=-CH2N+(CH3)2CH2CH2OHCl- (choln- PcM), n=2÷8, M=Co, Fe; (pymn-PcM), n=2÷8, M=Co, Fe; (R-)nPcM, where R=-CH2P(=O)(O-Na+)2(phosn-PcM), n=8, M-Co and II, II:(R-)nPcM, where R=R1=R2=-C(O)O-Na+ (carb8-PcM), n=8, M=Co, Fe; R=R1=-C(O)O-Na+, R2=H (carb4-PcM), n=4, M=Co; R= R1=-S(O)2O-Na+ , R2=H (sul4-PcM), n=4, M=Co. Also described is a method of oxidising sodium sulphide with oxygen in the presence of the above described catalyst.

EFFECT: achieved complete substrate conversion corresponding to activity 3.1x103 mol(Na2S)/mol (catalyst) min.

3 cl, 2 tbl, 44 ex

FIELD: chemistry.

SUBSTANCE: catalyst for oxidative demercaptanisation of oil and oil products is described, where the said catalyst is phthalocyanine deposited activated carbon and is distinguished by that, it contains charged phthalocyanine with structural formula I or its supramolecular ion-associates with oppositely charged phthalocyanine with structural formula I, I:(R+)nPcM, where R=-CH2N+(CH3)2CH2CH2OHCl- (choln- PcM), n=2÷8, M=Co, Fe; (pymn-PcM), n=2÷8, M=Co, Fe; (R-)nPcM, where R=-CH2P(=O)(O-Na+)2(phosn-PcM), n=8, M-Co or II, II:(R-)nPcM, where R=R1=R2=-C(O)O-Na+ (carb8-PcM), n=8, M=Co, Fe; R=R1=-C(O)O-Na+, R2=H (carb4-PcM), n=4, M=Co; R= R1=-S(O)2O-Na+ , R2=H (sul4-PcM), n=4, M=Co. Also described is a method of oxidative catalytic demercaptanisation of oil and oil products with atmospheric oxygen at room temperature in the presence of the above described catalyst.

EFFECT: carrying out the process in mild conditions with complete substrate conversion.

4 cl, 2 tbl, 59 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a complex compound of a magnetisable metal and salen. The complex compound is presented by formula (I) , wherein M represents Fe, Cr, Mn, Co, Ni, Mo, Ru, Rh, Pd, W, Re, Os, Ir or Pt, and a-f and Y represents hydrogen, or -NHR3-, -NHCOR3 respectively provided a-f and Y are not hydrogen simultaneously, wherein -R3 represents a pharmaceutical molecule with R3 provides the transport of a charge equivalent to max. 0.5 electron (e); or by formula (II) , wherein M represents Fe, Y, a, c, d, f, g, i, j, 1 represent hydrogen respectively; b and k represent -NH2, h and e represent -NHR3, wherein -R3 represents taxol (paclitaxel), or M represents Fe, Y, a, c, d, f, g, i, j, 1 represent hydrogen respectively; b, e, h and k represent -NHR3-, wherein -R3 represent gemfibrozil. There are also presented a local anaesthetic, an antineoplastic agent, a complex metal molecule, an intermediate compound, methods for preparing the magnetic substance, methods for preparing the magnetisable compound. The present invention enables preparing the therapeutic agent using the magnetic properties of the complex of metal and salen for the purpose of magnetising the specific therapeutic agent by chemical binding of the therapeutic agent to the complex of metal and salen so that to deliver the therapeutic agent to an affected area.

EFFECT: preparing the complex compound of the magnetisable metal and salen.

16 cl, 20 dwg, 10 tbl, 13 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a method for preparing compendial tetra(1-vinylimidazole)cobalt dichloride (Cobazol). The method involves a reaction of 1-vinylimidazole and cobalt dichloride in the molar relation of 1-vinylimidazole: CoCl2·6H2O = 4:1 at room temperature. The process is carried out in an aqueous medium at the concentration of 1-vinylimidazole 20-45%. A cobalt dichloride salt is introduced in the form of a solid crystalline hydrate added to a ligand solution in portions. The reaction is conducted for 3-8 hours. The end product is purified by water stripping in vacuum and then air elimination.

EFFECT: invention enables considerably reducing production costs, providing higher production and ecological safety with preserving higher yield of the compendial preparation Cobazol.

4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a cobalt complex with a modified phthalocyanine ligand which is covalently bonded with silica gel and has the following general formula: , where: R=Cl, NHAlk, NAlk2, n = 5-7, M = Co. Also disclosed is a method for valence isomerisation of quadricyclane in norbornadiene in the presence of the complex.

EFFECT: invention enables to obtain a cobalt complex with a modified phthalocyanine ligand, which can be used as a heterogeneous catalyst having high activity and high stability.

3 cl, 1 tbl, 29 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to medicine and chemical-pharmaceutical industry, namely industrial chemistry, and concerns a method for preparing octa-4,5-carboxyphthalocyanine sodium salt (a substance of the preparation teraphthal).

EFFECT: method provides preparing high-purity octa-4,5-carboxyphthalocyanine sodium salt free from residual low-molecular impurities, oligomer products and residual chlorides, reducing the labour content of production, and increasing yield.

1 ex

FIELD: chemistry.

SUBSTANCE: invention discloses an alkylation composition which is characterised by that it contains a cobalt complex, as well as a method for detoxification of a harmful compound, characterised by that a harmful compound containing at least one element selected from a group comprising arsenic, antimony and selenium is detoxified through alkylation in the presence of the disclosed composition.

EFFECT: obtaining novel compounds.

27 cl, 10 ex, 11 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to stable complexes consisting of metal oxides - iron, cobalt or alloys thereof in form of nanoparticles and bifunctional compounds, where the bifunctional compounds are selected from thiols, carboxylic acids, hydroxamic acids, phosphoric esters or salts thereof, having an aliphatic chain containing a second functional group in the terminal position ω, which can be used in certain novel hydrophilic plates and fibres, as well as a method of producing complexes. The method involves reaction of dispersion of said nanoparticles in an organic solvent with a suitable binder. The mixture is stirred for several hours at low temperature and the obtained product is then cooled and separated by centrifuging, and can then be cleaned via repeated dispersion in a suitable solvent and repeated deposition.

EFFECT: novel complexes with improved solubility in water-alcohol medium are obtained.

13 cl, 3 dwg, 9 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing bis(3,6-di(tert-butyl)benzosemiquinolates-1,2) of cobalt (II) or manganese (II) or nickel (II), of general formula: M(SQ)2 , where: SQ is 3,6-di(tert-butyl)benzoquinolate-1,2, and M = Mn(II) or Co(II) or Ni(II). The method is characterised by that a disubstituted salt of an alkali metal salt and 3,6-di(tert-butyl) pyrocatechol-1,2 is obtained, followed by reaction thereof with 3,6-di(tert-butyl)benzoquinoline-1,2. The formed 3,6-di(tert-butyl)benzosemiquinolate-1,2 of the alkali metal reacts with a Co(II) or Mn(II) or Ni(II) halide in an inert atmosphere in tetrahydrofuran.

EFFECT: simple synthesis of bis-semiquinolates of metals.

4 cl, 5 ex

FIELD: information technology.

SUBSTANCE: article with an image includes a substrate having a masked or concealed protective image on at least part thereof, which reflects less than 50% of radiation at wavelength 800-900 nm. The protective image contains an infrared radiation absorbing compound selected from:

or salt or polymer thereof, where M is a metal selected from iron, cobalt, nickel, aluminium, scandium, chromium, vanadium, titanium, manganese and lanthanide. R1 is selected from hydrogen, phosphonate, sulphonate, nitro, halogen, cyano, thiocyano, thioalkyl, thioaryl, alkyl, alkoxy, aryl, aryloxy, amine, substituted amines and substituted aryl. One of R2 and R3 is oxygen and the other is NO; n is a number corresponding to half the coordination number of metal M; each of L and L' independently denotes a ligand which forms a complex with metal M, and y is a number which corresponds to the coordination number of metal M. The infrared radiation absorbing compound does not form an intensely coloured protective image, and the protective image is pale, colourless or tinted. The invention also discloses a method of making the article with the image, using the compound and a method of authenticating the said article.

EFFECT: obtaining a protective image which can reflect less than half the light at 800-900 nm, and a protective image which is not intensely coloured.

14 cl, 35 ex, 4 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to novel derivatives of 1-allylimidazole with metal salts , where R denotes allyl, E denotes a metal, e.g. Zn (II) or Co (II), An denotes chlorine or acetate, n equals 2.

EFFECT: novel 1-allylimidazole derivatives having antihypoxic activity are obtained.

1 cl, 7 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: described is a novel compound - 1-acetyl-5,10-dioxy-5,10-dihydro-2H-anthra[2,3-D][1,2,3]triazole-7,8-dicarboxylic acid of formula , which can be used as a starting compound in synthesis of metal complexes of tetra[4,5]([6,7]1-acetyl-2H-naphtho[2,3-D][1,2,3]triazole-5,8-dione)phthalocyanine.

EFFECT: possibility of use as dyes or catalysts.

1 cl, 3 ex, 4 dwg, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to zeolite containing platinum. Method of producing zeolite containing platinum comprises impregnating zeolite with platinum sulfite solution and calcination of impregnated zeolite in protective atmosphere. Obtained zeolite comprises, at least 2 wt % of platinum wherein, at least, 90% of platinum are located in zeolite pores. Besides, invention covers the application of aforesaid zeolite as oxidation catalyst and trap of hydrocarbons and catalyst component bearing said zeolite.

EFFECT: lower susceptibility to ageing, higher activity.

20 cl, 4 tbl, 7 ex, 3 dwg

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