Nano composite ion exchange resin catalyst and application thereof

An ion exchange resin and nanocomposite technology, applied in the field of nanocomposite ion exchange resin catalyst, can solve the problems of low yield, harsh operating conditions, long synthesis route, etc., and achieve high catalyst activity, high conversion rate and high alkali resistance. Effect

Active Publication Date: 2021-01-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the monomer synthesis route of this route is long, the operating conditions are harsh, the yield is low and the functional monomer is difficult to separate and purify, and the purity is not high, which affects the performance of the final polymer

Method used

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  • Nano composite ion exchange resin catalyst and application thereof
  • Nano composite ion exchange resin catalyst and application thereof
  • Nano composite ion exchange resin catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] [Example 1] Preparation of Ion Exchange Resin Catalyst

[0050] Add 65.0 g of styrene, 1.0 g of divinylbenzene, 3.0 g of octavinylsilsesquioxane and 1.0 g of benzoyl peroxide into a 500 ml three-necked flask, start the stirrer and stir for 0.5 hours; add 200 ml of deionized A mixed solution of water and 4 g of polyvinyl alcohol was stirred for 2 hours. Then gradually raise the temperature to 75°C, react for 5 hours, then raise the temperature to 90°C, react for 10 hours, and finally raise the temperature to 100°C, react 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 microspheres with a particle size within the range of 0.35 to 0.60 mm A1.

[0051] Chloromethylation: In a 500ml three-necked flask, add 50g of composite microspheres A1 and 200ml of chloromethyl ether, let it stand at room temperature for 6 hours, add 30g of zinc chlo...

Embodiment 2

[0055] [Example 2] Preparation of Ion Exchange Resin Catalyst

[0056] Add 50.0 grams of styrene, 1.6 grams of divinylbenzene, 4.5 grams of octavinylsilsesquioxane and 1.0 grams of benzoyl peroxide into a 500 milliliter three-necked flask, start the stirrer and stir for 0.5 hours; add 200 milliliters of deionized A mixed solution of water and 4 g of polyvinyl alcohol was stirred for 2 hours. Then gradually raise the temperature to 60°C, react for 5 hours, then raise the temperature to 90°C, react for 12 hours, and finally raise the temperature to 100°C, react for 12 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 microspheres with a particle size within the range of 0.35 to 0.60 mm A2.

[0057] Chloromethylation: In a 500 ml three-necked flask, add 50 g of composite microspheres A2 and 200 ml of chloromethyl ethyl ether, let it stand at room tem...

Embodiment 3

[0061] [Example 3] Preparation of Ion Exchange Resin Catalyst

[0062] Add 50.0 grams of styrene, 2.6 grams of divinylbenzene and 1.6 grams of benzoyl peroxide initiator in a 500 milliliter three-necked flask, then add 0.6 grams of octavinylsilsesquioxane, and add 2.0 grams of gelatin that has been dissolved 260 ml of deionized aqueous solution was gradually heated up, and stirred and reacted at 60° C. for 2.0 hours. At the same time, the temperature was gradually raised to 80°C and reacted for 5 hours; then the temperature was raised to 90°C and reacted for 5 hours, and finally the temperature was raised to 98°C and reacted for 6 hours. After the reaction, pour out the upper liquid, wash it with 85°C hot water, then wash it with cold water, then filter, put it in an oven to dry at 80°C, sieve, and collect composite microspheres with a particle size within the range of 0.35-0.60mm A3.

[0063] Chloromethylation: In a 500ml three-necked flask, add 40g of composite microsphere...

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Abstract

The invention relates to a catalytic hydration reaction of alkylene oxide and a nano composite ion exchange resin catalyst thereof. The preparation process of the nano composite ion exchange resin catalyst comprises copolymerization of a nano material, a monomer and a cross-linking agent, a functionalization reaction of a copolymer and an ion exchange reaction. The nano composite ion exchange resin catalyst has the following structural general formula: P-N<+>R1R2R3M<->, wherein P is a nano composite resin matrix, R1, R2 and R3 are all fatty groups or aromatic groups CxHy, x is any integer from1 to 10, y is any integer from 3 to 21, and M<-> is an anion and selected from the group consisting of bicarbonate ions, hydroxide ions, bisulfite ions, carboxylate ions, citrate ions, heteropoly acid ions, trifluoromethanesulfonate, p-toluenesulfonate, benzenesulfonate, methanesulfonate, tetrafluoroborate or hexafluorophosphate. The catalyst can be applied to organic reactions such as catalytichydration of alkylene oxide.

Description

technical field [0001] The invention relates to a nanocomposite ion exchange resin catalyst and its application. Background technique [0002] Ion exchange resin is a functional polymer material, rich in ion exchange groups, resistant to acid and alkali solutions and many organic solvents, and has strong solvent stability. Industrially, styrene and divinylbenzene are copolymerized to prepare the matrix of ion exchange resins, and anion exchange resins are prepared through chloromethylation and amination reactions. [0003] At the end of the 20th century, Shell, Dow, and SD companies began to study the application of ion exchange resins in catalytic hydration. Lemanski et al. used strong base ion exchange resins as the main catalyst for catalyzing the hydration of ethylene oxide, and used acidic ion exchange resins as additives. Temperature 100 ℃, pressure 1.0MPa, water ratio 5.5: 1 under reaction 6 hours, the conversion ratio of raw material ethylene oxide is 100%, the sele...

Claims

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Application Information

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IPC IPC(8): C07C29/04C07C31/20B01J31/08B01J31/10
CPCC07C29/04B01J31/08B01J31/10B01J2231/341C07C31/202Y02P20/52
Inventor 俞峰萍何文军
Owner CHINA PETROLEUM & CHEM CORP
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