Method of preparing heterogeneous metal-polymer catalyst for cleaning waste waters to remove phenol compounds

FIELD: waste water treatment.

SUBSTANCE: method comprising deposition of active components onto polymer carrier followed by washing with modifying solution and drying of resulting catalyst is characterized by that above-mentioned polymer carrier is a super-crosslinked polystyrene preliminarily washed with acetone and dried, deposition of active components onto polymer carrier is accomplished by impregnating it for 8-10 min with complex solution of platinum group metal chloride and/or gold-hydrochloric acid sodium salt in concentration 0.57-64.5 g/L in complex organo-alcohol-water solvent containing, in particular, tetrahydrofurane, methanol, and water, whereupon catalyst id dried to constant weight and then optionally washed with modifying solution of sodium carbonate, 2.76-136.74 g/L, and with distilled water to neutral pH = 6.8-7.2. Catalyst allows deep oxidation of phenol compounds at high degree of conversion.

EFFECT: enhanced phenol oxidation activity of catalyst, simplified catalyst preparation technology needing utilization of lesser amounts of expensive chemicals.

3 cl, 3 tbl, 18 ex

 

The invention relates to the production of polymeric heterogeneous catalysts and can be used in chemical, textile, pulp and paper industries to address environmental problems associated with recycling of industrial and household emissions.

A method of obtaining a heterogeneous catalyst for the purification of waste water and gas emissions from organic and inorganic components by the method of liquid-phase oxidation, which is consistent processing of knitted fabric with a hot alkaline solution containing chloride hydroxylamine in the number 14-42 g/l and an aqueous solution of salts of metals of variable valence. In the first stage, spend processing the modifying solution containing chloride hydroxylamine and Ethylenediamine, in which the ratio of the number of parts of polyacrylonitrile to the amount of Ethylenediamine is 2-10, the solution pH is 6-9. Temperature processing 95-105°C, the processing time 1-1,6 hours. In the second stage are processed in an aqueous solution of transition metal salts for 0.5-2 hours (RU # 2265032, CL. C08J 5/20, 2005.11.27).

The disadvantage of this method is the need of the use of hazardous substances and the process at a high temperature for a long time. These factors increase the harmful effects on humans and the environment is in the case of manufacturing the catalyst in an industrial environment.

There is also known a method of making a heterogeneous catalyst based on porous amorphous titanium silicate material is aerogel or xerogel, with a titanium content of not less than 0.2 wt.%. The catalyst prior to use calcined at a temperature of from 100 to 600°C. the Molar ratio of aromatic substrate/titanium not exceeding 200. As oxidant using an aqueous solution of peroxide of hydrogen peroxide content of not less than 15 wt.%. The process is conducted at a temperature of not lower than 20°C. In the solvent used miscible with water, alcohols, ketones, carboxylic acids, acetonitrile. Use the molar ratio of hydrogen peroxide/the substrate is not less than 2:1. The catalyst is separated by filtration and re-use. Method of preparation of porous amorphous titanium silicate catalyst includes stage acid hydrolysis of alkoxides of silicon and titanium and condensation hydroxides, the subsequent aging of the gel and drying under supercritical conditions. Partially instead of the alkoxide of silicon using low-molecular utilility material - ethyl silicate-40, phase condensation polysilicates hydroxide and titanium hydroxide is carried out in a neutral or alkaline conditions in the presence of a basic catalyst. The aging of the gel is carried out in air, gel or dried using carbon dioxide in sverke the practical conditions with the formation of the titanium-silicate aerogel, either by conventional air drying at atmospheric or reduced pressure with the formation of mesoporous titanium-silicate xerogel. Ethyl silicate-40 take in not less than 10 wt.% of the total number of silicon and a silicon alkoxide of the General formula Si(OR1)4or Si(OR1)3R2where R1=C1-4-alkyl, R2=C1-4is alkyl or aryl, in an amount not more than 90 wt.% of the total number of silicon. The molar ratio of Si/Ti is not more than 400:1 (RU # 2001108039, CL SS 46/06, 2003.02.10).

The disadvantage of this method is the complexity of the technological scheme of the synthesis of the catalyst, and the low degree of conversion of phenolic compounds.

The prototype of the claimed invention is a method for heterogeneous metal-polymer material with catalytic properties. The method consists of two-stage processing of polymeric media - paintings, the modifying solution at a temperature of 106-150°C for 10-30 min at achieving a ratio of the number of parts of polyacrylonitrile to the amount of chlorinated salts of hydrazine 20-30, and to the amount of chlorinated salt of hydroxylamine - 10-15, the solution pH is 6-9. Then carry out the treatment with an aqueous solution of salts of transition metals within 1.0 to 2.0 hours to metal content in the catalyst 0,81-1.2 mmol/g After each treatment p is avodat washing demineralized water (RU # 2266304, CL C08J 5/20, 2005.12.20).

The main disadvantage of the prototype is the necessity of using a large number of expensive and toxic reagents, which may lead to an increase in material costs for the production of a heterogeneous catalyst. The process of synthesis catalyst at high temperature and high pressure increases the risk conditions of the manufacture of the catalyst.

The objective of the invention is to develop a method of producing a heterogeneous metal - polymer catalyst for raising the technological conditions of its production while enhancing the efficiency and stability of the oxidation of phenols on a heterogeneous catalyst.

The technical result of the invention to provide an active, stable heterogeneous catalyst for purification of wastewater from phenols, allowing for deep oxidation of phenolic compounds wastewater with a high degree of conversion of phenols, as well as the simplification of the manufacture of the catalyst with the use of smaller quantities of expensive reagents.

The task and the specified technical result is achieved by the fact that in a method of producing a heterogeneous metal-polymer catalyst for purification of wastewater from phenolic compounds, including the application of the active components is tov on polymeric media with subsequent washing of the modifying solution and drying the obtained catalyst, according to the invention as the polymer carrier used supersewn polystyrene, pre-washed with acetone and dried, application of active components on the polymeric carrier carried by soaking for 8-10 min a comprehensive solution of chloride of platinum group metal and/or sodium salt zolotosoderzhashchikh concentration of 0.57÷64.5 g/l in the complex organozirconium solution containing tetrahydrofuran, methyl alcohol and water, by drying to constant mass and subsequent washing in the modifier solution of sodium carbonate concentration of 2.76÷136.74 g/l, after modifying rinse with distilled water until a neutral pH environment 6.8÷7.2. While the application of active components on the polymeric carrier is carried out by sequential impregnation of complex solutions of the chlorides of platinum group metals in the form of sodium salt hexachloroplatinic acid, and/or palladium chloride and/or sodium salt soloconsolidation acid and/or trichlormethiazide ruthenium. After each successive impregnation of complex solutions of the chlorides of the metals of the platinum group of the polymer carrier is washed with distilled water and dried to constant weight.

In the manufacture of the catalyst supersewn polystyrene pre-washed with acetone is dried. After it soaked for 10 minutes in a solution of salt of the platinum group metal concentration of 0.57-64.5 g/l in a mixture of tetrahydrofuran, methanol and water. Then the sample is dried to constant mass and washed the modifying solution of sodium carbonate concentration was 2.76-136,74 g/L. After each processing solution are rinsed with distilled water until neutral pH and dried at t=70±2°C to constant weight. The technology of manufacture of the catalyst is facilitated oxidation of phenols is set to intensify with repeated use of the catalyst (see table 1 and 2).

The application of active components may be implemented as one component of a platinum group metal and in the form of a multi-stage application of active components, which allows the formation of intermetallic nanoclusters of platinum group metals with a given degree of oxidation.

Reducing the time of impregnation supersewn polystyrene in the process of applying active ingredients less than 8 minutes leads to the formation of active centers in the macropores supersewn polystyrene, which leads to deactivation of the catalyst during its repeated use. While the increase in time of impregnation supersewn polystyrene more than 10 minutes leads to the formation of nanoparticles of metals of variable Val is nutnosti in micropores supersewn polystyrene, this negatively affects the activity of the produced catalyst.

When the reduction is less than 0.57 g/l of platinum group metal leads to the formation of a larger number of nanoparticles and to reduce clustering, but is insufficient for an active and stable steps of catalytic systems. The increase in the number of metal more 64.5 g/l leads to clustering and the formation of larger nanoparticles, which also has a negative impact on the activity, stability and selectivity of heterogeneous catalysts. The use of modifying agents allows you to create a more active nanoclusters of metals with well-developed active surface.

Using as solvent a mixture of tetrahydrofuran, methanol and water is a necessary condition for making a heterogeneous catalyst based on supersewn polystyrene according to the invention.

The use of sodium carbonate for modification of Pt, Pd, Au, Pt-Pd, Pt-Ru, Pd-Ru, Pt-Pd-Ru catalysts on the basis of supersewn polystyrene provides better fixation of metals in the matrix supersewn polystyrene. The change in the ratio of the concentration of the modifying agent and a platinum group metal, both in big and smaller parties from specified intervals, leads to reduced activity of the actions made g is therogenic catalytic systems.

Changing the pH of the medium on the stage of leaching of the catalyst is lower than 6.8, and more 7.2 drive to weak fixation of metals in the matrix supersewn polystyrene and deactivation of the catalyst during repeated use.

Making a heterogeneous catalyst for purification of wastewater from phenols described method provides a high catalytic activity and stability of the catalytic system.

To explain the method of making a heterogeneous catalyst for purification of wastewater from phenols table 1.

The best embodiments of the method

Example 1

3 g of the polymer MN-270 (Macroporous Swersey polystyrene, grade 270, Hypersol-Macronet™ Sorbent resin, Purolite technical bulletin. The PUROLITE company, 2002), pretreated with acetone and dried to constant weight, infused 6.2 ml of a solution consisting of 4.2 ml of tetrahydrofuran, 1 ml of methyl alcohol and 1 ml of water with dissolved sodium salt chloroplatinic acid Na2PtCl6with a concentration of 1.30 g/l for 8-10 minutes. Then the polymer was dried at t=70±2°C. the resulting media suspended in the modifier solution of sodium carbonate Na2CO3with a concentration of 2.76 g/l for 15 min, washed with distilled water until a neutral pH environment, again dried at t=70±2°C. the Degree of conversion of the phenol composition of the sludge 98.9%, the catalytic system remained stable for 15 cycles.

Example 2

3 g of the polymer MN-270, pretreated with acetone and dried to constant weight, infused 6.2 ml of a solution consisting of 4.2 ml of tetrahydrofuran, 1 ml methanol, 1 ml of water with dissolved sodium salt chloroplatinic acid Na2PtCl6with a concentration of 1.29 g/l (mixing time of 8-10 min). Washed with distilled water until a neutral pH environment, then the polymer was dried at t=70±2°C. thereafter, the carrier was impregnated with a solution volume of 7 ml, consisting of 5-tetrahydrofuran, 1 ml methanol, 1 ml water and dissolved chloride palladium PdCl2with a concentration of 0.80 g/l and sodium chloride Nad concentration 0.322 g/l Carrier was treated with this solution for 8-10 minutes. Washed with distilled water until neutral pH, then dried at t=70±2°C. thereafter, the medium was again soaked for 8-10 min in 7 ml of a solution consisting of 5 of tetrahydrofuran and 1 ml methanol, 1 ml of water with dissolved in it trichlormethiazide ruthenium [Ru(OH)]Cl3with a concentration of 0.57 g/l was Washed with distilled water until a neutral pH environment, then the polymer was dried at t=70±2°C. the resulting carrier suspended in the modifier solution of sodium carbonate Na2CO 3with a concentration of 2.76 g/l for 15 min, washed with distilled water until neutral pH and was again dried at t=70±2°C. the Degree of conversion of phenol was 99.8%, the catalytic system remained stable for 15 cycles.

Example 3

This example was carried out analogously to example 1, but the polymer MN-270 is processed organozirconium solution of sodium salt chloroplatinic acid with a concentration of 64.5 g/l Degree of conversion of phenol was 97.9%, the catalytic system remained stable for 15 cycles.

Example 4

This example was carried out analogously to example 1, but the polymer MN-270 is processed organozirconium solution trichlorinated ruthenium with a concentration of 0.57 g/L. the Degree of conversion of phenol was 92.4%, the catalytic system remained stable for 15 cycles.

Example 5

This example was carried out analogously to example 2, however, the polymer MN-270 is processed instead organobentonites solution trichlorinated ruthenium organozirconium solution of sodium salt soloconsolidation acid with a concentration of 1.3 g/L. the Degree of conversion of phenol was 97.6%, the catalytic system remained stable for 15 cycles.

This invention is not limited to the above examples is, there may be other options for its use. The results of using heterogeneous metal-polymer catalyst are shown in tables 1-3

As the parameter characterizing the catalytic activity of the produced catalyst was selected as the degree of transformation (conversion) model solution of phenol over time the reaction of phenol oxidation. The best results are presented in table 2. Characteristic stability of catalytic systems was selected degree of conversion of the model solution of phenol on the number of classes of cycles (table 3).

The most active is the tri-metal catalyst of Pt-Pd-Ru catalyst, which is associated with the formation of nanocomposite intermetallic structure of the active center, which provides high activity and stability of the catalytic system.

The catalyst based on gold, impregnowanego in the matrix supersewn polystyrene, did not show high activity in mild conditions of the process of phenol oxidation, however, it is characterized by high stability during repeated use.

In the process of repeated use is made of catalytic systems with a high content of platinum group metals is observed coarsening of the nanoparticles and the formation of microclusters that Pref is the CIO to reduce the activity of catalysts, while catalysts with low content of platinum group metals do not tend to form microclusters and aggregation of the nanoparticles, which leads to preservation activity made catalytic systems.

Obtaining polymeric catalyst, based on supersewn polystyrene, pre-washed with acetone and dried, and then modified by impregnation of the polymer carrier complex solution of chloride of platinum group metals (Na2PtCl6, Na2PdCl4, NaAuCl4, RuOHCl3) concentration of 0.57-64.5 g/l in the complex organozirconium solution (tetrahydrofuran, methyl alcohol, water), followed by drying and impregnation with a solution-modifier sodium carbonate with a concentration of 2.76-136.74 g/l, by washing with distilled water and drying allows you to get active, stable heterogeneous catalyst for purification of wastewater from phenols.

Currently, the method of making a heterogeneous catalyst is in the development phase of technological regulations.

td align="left"> 0.8
Table 1
Technical parameters of manufacturing catalyst
№ p/pNumber of media, ATP, MN - 270, gThe number is astorias for compounds of platinum metals, mlThe concentration of metal in solution for processing the polymer carrier, g/lThe amount of modifying agent, g/l
H2OCH3HETHFPtPdENAuNa2CO3
13114.21.30---2.76
23114.212.90---27.24
33114.232.26---68.40
43114.264.50---136.74
53114.2-0.80--1.70
63114.2-12.90--27.35
73114.2-38.0 --82.04
83114.2-64.50--136.74
93114.2--0.57--
103114.2--12.40--
113114.2--37.30--
123114.2--64.50--
133114.2---1.32.76
143114.21.29-0.57-3.92
153114.21.290.8--2.76
163114.2-0.57-2.76
173114.21.290.80.575.62
183114.21.290.8-1.35.62

18
Table 2
Examples of the application of catalyst
№ p/pThe platinum group metal catalystThe amount of platinum group metal, %The degree of conversion of phenol, %
1Pt0.1098.9
2Pt1.0098.3
3Pt2.5098.5
4Pt5.0097.9
5Pd0.0690.3
6 Pd1.0090.0
7Pd3.0092.8
8Pd5.0090.1
9EN0.0592.4
10EN1.0090.0
11EN3.0092.0
12EN5.0088.8
13Au0.1098.0
14Pt - EN0.10-0.0596.4
15Pt - Pd0.10-0.0697.4
16Pd - EN0.07-0.0598.9
17Pt - Pd - Ru0.10-0.07-0.0599.8
Pt - Pd - Au0.10-0.07-0.1097.6
Table 3
Characteristic stability effectively working catalytic systems
№ p/pThe platinum group metal catalystThe amount of platinum group metal, %Number of operating cycles for heterogeneous catalystThe degree of conversion of phenol, %
1.1Pt0.10198.9
1.2Pt0.10597.3
1.3Pt0.101099.9
1.4Pt0.101599.9
4.1Pt5.00197.9
4.2Pt5.00594.8
4.3Pt5.001095.3
4.4 Pt5.001596.2
9.1EN0.05192.4
9.2EN0.05593.0
9.3EN0.051094.0
9.4EN0.051594.0
17.1Pt - Pd - Ru0.10-0.07-0.05199.8
17.2Pt - Pd - Ru0.10-0.07-0.05599.6
17.3Pt - Pd - Ru0.10-0.07-0.051099.9
17.4Pt - Pd - Ru0.10-0.07-0.051599.9
18.1Pt - Pd - Au0.10-0.07-0.10197.6
18.2Pt - Pd - Au0.10-0.07-0.10595.3
18.3Pt - Pd - Au.10-0.07-0 .10 1098.4
18.4Pt - Pd - Au0.10-0.07-0.101598.1

1. A method of obtaining a heterogeneous metal-polymer catalyst for purification of wastewater from phenolic compounds, including the application of active components in polymeric media with subsequent washing of the modifying solution and drying the obtained catalyst, characterized in that the polymer carrier used supersewn polystyrene, pre-washed with acetone and dried, application of active components on the polymeric carrier carried by soaking for 8-10 min a comprehensive solution of chloride of platinum group metal and/or sodium salt zolotoporfirovoe acid concentration of 0.57 and 64.5 g/l in the complex organozirconium solution containing tetrahydrofuran, methyl alcohol and water, by drying to constant mass and possible subsequent rinsing in the modifier solution of sodium carbonate concentration was 2.76-136,74 g/l, and after modification rinse with distilled water until a neutral pH environment of 6.8 to 7.2.

2. The method according to claim 1, characterized in that the application of active components on the polymeric carrier is carried out by sequential impregnation of complex Rosterminalugol of platinum group metals in the form of sodium salt hexachloroplatinic acid, and/or palladium chloride in combination with sodium chloride and/or sodium salt soloconsolidation acid, and/or trichlormethiazide ruthenium.

3. The method according to claim 2, characterized in that after each successive impregnation of complex solutions of the chlorides of the metals of the platinum group of the polymer carrier is washed with distilled water and dried to constant weight.



 

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7 cl, 2 tbl, 13 ex

FIELD: catalysts in petroleum processing and petrochemistry.

SUBSTANCE: invention relates to catalysts for extensive hydrofining of hydrocarbon stock, in particular diesel fractions, to remove sulfur compounds. Catalyst of invention, intended for diesel fraction desulfurization processes, comprises active component, selected from oxides of group VIII and VIB metals and phosphorus, dispersed on alumina support, said alumina support containing 5-15% of montmorillonite, so that total composition of catalyst is as follows, wt %: molybdenum oxide MoO3 14.0-29.0, cobalt oxide CoO and/or nickel oxide 3-8, phosphorus 0.1-0.5, and support - the balance, molar ratio Mo/Co and/or Mo/Ni being 1.3-2.6 and P/Mo 0.08-0.1. Preparation of catalyst support consists in precipitation of aluminum hydroxide and addition of montmorillonite with moisture content 55-70% to water dispersion of aluminum hydroxide in amount such as to ensure 5-15% of montmorillonite in finished product, after which resulting mixture is extruded and extrudate is calcined at 500-600°C to give support characterized by specific surface 200-300 m2/g, pore volume 0.5-0.9 cm3/g, and prevailing pore radius 80-120 Å. Catalyst preparation comprises impregnation of calcined support with complex solution of group VIII and VIB metal salts and phosphorus followed by heat treatment in air or nitrogen flow at temperature not exceeding 200°C, impregnation solution notably containing molybdenum oxide and cobalt and/or nickel carbonate at Mo/Co and/or Mo/Ni molar ratio 1.3-2.6 stabilized with orthophosphoric acid and citric acid to P/Mo molar ratio between 0.008 and 0.1 at medium pH between 1.3 and 3.5. Described is also diesel fraction hydrodesulfurization process involving passage of diesel fraction through bed of above-defined catalyst.

EFFECT: intensified diesel fraction desulfurization.

9 cl, 3 tbl, 19 ex

FIELD: petroleum processing catalysts.

SUBSTANCE: invention relates to catalysts for deep hydrofining of hydrocarbon feedstock, in particular diesel fractions, to remove sulfur compounds. Invention, in particular, provides catalyst for hydrodesulfurization of diesel fractions including active component selected from group VIII and VIB metal oxides dispersed on alumina carrier, which is, in particular, composed of aluminum oxides, 85-95%, and H form or cation-substituted form of zeolite ZSM-5, mordenite, zeolite BEA, or zeolite Y, 5-15%. Active component is selected from oxides of molybdenum and cobalt and/or nickel. Carrier preparation method comprises precipitation of aluminum hydroxide, incorporation of zeolite in H form or cation-substituted form in amount 5-15% (based on final product) and peptizing agent into aluminum hydroxide powder, extrusion of resulting mixture, drying, and calcination at 450-600°C. Preparation of catalyst includes impregnation of above-defined carrier with complex solution of group VIII and VI metal salts in air or nitrogen flow at temperature not higher than 200°C. Diesel fraction hydrodesulfurization process is also described.

EFFECT: enhanced purification of diesel fractions.

10 cl, 2 tbl, 14 ex

FIELD: industrial organic synthesis catalysts.

SUBSTANCE: invention relates to a method of preparing ethylene oxide production catalyst containing silver deposited on alumina carrier originally having sodium and silicate ions on its surface. Carrier is preliminarily treated with aqueous solution of lithium salt at temperature below 100°C, after which at least 25% sodium ions are removed and replaced with up to 10 mln-1 lithium ions. Carrier is dried and then silver and promoters are precipitated on the pretreated and dried carrier.

EFFECT: achieved stability of catalyst.

7 cl, 11 tbl, 17 ex

FIELD: gas treatment catalysts.

SUBSTANCE: invention concerns environmental protection area and aims at neutralizing toxic components of emission gases and, more specifically, related to a method of preparing catalyst for oxidative treatment of gases polluted by hydrocarbons and carbon monoxide. Invention provides catalyst supported by stainless steel containing 0.05-0.15 wt % ruthenium or ruthenium in the same quantity combined with platinum or palladium in quantity not exceeding 0.05 wt %. Catalyst preparation method is also described.

EFFECT: increased degree of removal of hydrocarbons, increased strength of catalyst, and reduced price of catalyst.

2 cl, 2 tbl

FIELD: petroleum processing.

SUBSTANCE: petroleum feedstock hydrocracking catalyst is prepared by compounding zeolite Y with aluminonickel(cobalt)-molybdenum(tungsten) oxide system. Specifically, low-alkalinity zeolite Y having silicate modulus 5.5-7.0 and crystallinity at least 70% is mixed with aluminum hydroxide having pseudoboehmite structure in proportion (1-9):1. Thus obtained mix is molded, dried, and calcined under water steam atmosphere to give molded thermally treated zeolite. The latter is impregnated with aqueous Ni(Co) and Mo(W) salt solutions or ground and compounded with aluminonickel(cobalt)-molybdenum(tungsten) oxide system by mixing with aluminum hydroxide and Ni(Co) and Mo(W) salts, after which follow molding and impregnation with aqueous Ni(Co) and Mo(W) salt solutions.

EFFECT: expanded catalyst preparation possibilities.

2 cl, 5 tbl, 4 ex

FIELD: chemical industry; petrochemical industry; other industries; methods of production of the catalysts of hydrogenation of arenes.

SUBSTANCE: the invention is pertaining to the field of the catalytic chemistry, in particular, to production of the catalysts used for dearomatization of the diesel fractions. The invention presents the catalyst for hydrogenation of the arenas containing platinum the carrier, which aluminum oxide containing of no more than 500 ppm of impurities in the mixture with the crystalline mesosculiferous aluminosilicate with the molar ratio of Si/Al equal to 10-60 at the following contents of the ingredients (in mass %): platinum (Pt) - 0.15-0.60; aluminum oxide (AI2O3) - 59.85-94.4; crystalline mesoosculiferous aluminosilicate (AlxSiyOz) - 5-40, where х = 0.017 - 0.1; y = 1; z = 2.026 - 2.15. The invention also presents the method of preparation of the catalyst of hydrogenation of the arenes providing for production of the carrier, deposition of platinum on the carrier by the method of the competitive impregnation from the combined solution of the carrier from the joint solution of the chloroplatinic acid, acetic acid and hydrochloric acid the subsequent drying, and burning, differing that the carrier is produced by mixing of the powdery aluminum oxide containing of no more than 500 ppm of the impurities, and the crystalline mesoosculiferous aluminosilicate AlxSiyOz, (where х = 0.017 - 0.1; y = 1; z = 2.026 - 2.15), with the molar ratio molar ratio of Si/Al equal to 10-60, humidification of the produced mixture and the jellification by the 1.5 - 5 % solution of the nitric acid. The technical result of the invention is the increased hydrogenating activity of the catalyst.

EFFECT: the invention ensures the increased hydrogenating activity of the catalyst.

3 cl, 2 tbl, 4 ex

FIELD: petrochemical processes and catalysts.

SUBSTANCE: invention concerns catalytic process for obtaining isooctane fractions via alkylation of isobutane with butylene fractions. Process involves catalytic complex having following composition: MexOy*aAn-*bCnClmH2n+2-m, wherein Me represents group III-IV metal, x=1-2, y=2-3, and An- anion of oxygen-containing acid selected from sulfuric, phosphoric, molybdenic, and tungstenic acid, or mixture thereof in any proportions; a=0.01-0,2, b=0.01-0.1; bCnClmH2n+2-m is polychlorine-substituted hydrocarbon with n=1-10 and m=1-22, dispersed on porous support and containing hydrogenation component. Alkylation process is carried out at temperature not exceeding 150°C, mass flow rate of starting mixture not higher than 3 g/g cat*h, pressure not higher than 40 atm, and in presence of 10 mol % hydrogen.

EFFECT: increased catalyst stability and selectivity.

5 cl, 3 tbl, 20 ex

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