Immobilized ionic liquid catalyst and application thereof

A technology of ionic liquids and catalysts, applied in the field of immobilized ionic liquid catalysts, can solve the problems of reduced catalytic efficiency of catalysts, and achieve the effects of easy separation, high selectivity, and good technical effects

Inactive Publication Date: 2017-02-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although after repeated use 4 times, the catalytic efficiency of the catalyst did not decrease

Method used

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  • Immobilized ionic liquid catalyst and application thereof
  • Immobilized ionic liquid catalyst and application thereof
  • Immobilized ionic liquid catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]Add 47.0 grams of styrene, 2.3 grams of divinylbenzene, 25 grams of polystyrene and 1.6 grams of benzoyl peroxide initiator in a 500 milliliter three-necked flask, stir and react for 2.0 hours at 60°C; then add 0.6 grams of multilayer Graphene, continue stirring for 1 hour for pre-polymerization. 260 mL of deionized water in which 2.0 g of gelatin had been dissolved was added. Adjust the stirring speed, and at the same time gradually raise the temperature to 80°C, and react for 5 hours; then raise the temperature to 90°C, react for 5 hours, and finally raise the temperature to 98°C, and react for 6 hours. After the reaction, pour out the upper liquid, wash it with hot water at 85°C for several times, then wash it with cold water for several times, then filter it, put it in an oven for drying at 80°C, and sieve it to collect the particle size within the range of 0.35-0.60mm Composite macroporous microsphere A.

[0041] Chloromethylation of composite macroporous microsph...

Embodiment 2

[0046] Add monomer mixture solution (60.0 gram styrene, 1.0 gram divinylbenzene, 60 gram polystyrene, 1.6 gram multilayer graphene and 1.0 gram benzoyl peroxide containing initiator in 500 milliliters of there-necked flasks, the The solution was first stirred and reacted at 70°C for 0.5 hours), the stirrer was started, a mixed solution of 200 ml of deionized water and 4 grams of polyvinyl alcohol was added, the temperature was raised to 85°C, and the reaction was carried out for 3 hours, then the temperature was raised to 90°C, and the reaction was carried out for 9 hours. Finally, the temperature was raised to 100° C., and the reaction was carried out for 10 hours. After the reaction, pour out the upper liquid, wash with 85°C hot water, then wash with cold water, then filter, put in an oven to dry at 80°C, sieve, and collect composite macropores with a particle size within the range of 0.35 to 0.60 mm Microspheres B.

[0047] Chloromethylation of composite microspheres: In a...

Embodiment 3

[0052] Change the anion in [Example 1] (using p-toluenesulfonic acid, the consumption is equimolar with the compound imidazolium cationic microsphere A), all the other preparation conditions are the same as [Example 1], finally obtain Cat-C, its structural formula is

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PUM

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Abstract

The invention relates to an immobilized ionic liquid catalyst and application thereof. The immobilized ionic liquid catalyst has a general structural formula as defined in the specification. In the general structural formula, P is a nanometer macroporous resin matrix; n is an integer in a range of 2 to 12; M<-> is a negative ion selected from a group consisting of a trifluoromethanesulfonate group, a p-toluenesulfonate group, a benzenesulfonate group, a methanesulfonate group, a tetrafluoroborate group and a hexafluorophosphate group; and the nanometer macroporous resin matrix is a nanometer macroporous copolymer prepared from styrene monomer, copolymerization monomer, a graphene material and a pore-forming agent through in-situ copolymerization. The immobilized ionic liquid catalyst can be applied to industrial olefine acid addition for preparation of corresponding esters.

Description

technical field [0001] The invention relates to a solid-supported ionic liquid catalyst and its application. Background technique [0002] Butyl acrylate is an important polymer monomer and organic intermediate. It is a colorless and transparent liquid at room temperature. It has good chemical and physical properties such as weather resistance, water resistance, oil resistance, and chemical resistance. The industrial production methods of acrylate mainly include nitrile alcohol method, acrylonitrile hydrolysis method, acrylate method and transesterification method. BASF, Rohm and Haas, Mitsubishi, Idemitsu Petrochemical Co., Ltd., Elevator Chemical, etc. abroad have all carried out scientific research and development on it, mainly focusing on the improvement of the production process, including the multi-phase azeotropic process. Development of new catalytic systems, including heteropolyacids and their salts, solid superacids, large-pore zeolite systems, and ion resin syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/06C07C69/54C07C67/04
Inventor 俞峰萍何文军宗弘元
Owner CHINA PETROLEUM & CHEM CORP
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