Strong-alkalinity composite ion exchange resin material and preparation method thereof

A composite ion and exchange resin technology, applied in ion exchange, anion exchange, chemical instruments and methods, etc., can solve the problems of poor swelling resistance and heat resistance

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One of the problems to be solved by the present invention is that the prior art has the problems of poor heat resistance and poor swelling resistance of strong basic ion exchange resins, and a new strong basic composite ion exchange resin material is provided, which has heat resistance Good performance, excellent anti-swelling performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In 250 milliliters of there-necked flasks, add 36 gram p-chloromethylstyrenes, 6.6 gram divinylbenzene and 0.3 gram benzoyl peroxide initiator, stir 1.5 hours at 60 ℃; Then add 2.2 gram single-layer graphene, Stirring was continued for 1 hour to carry out prepolymerization. 130 mL of deionized water in which 1.3 g of polyvinyl alcohol had been dissolved was added. Gradually raise the temperature to 80°C and react for 5 hours; then raise the temperature to 90°C and react for 5 hours; 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, then filter it, put it in an oven to dry at 80°C, and sieve it to collect the composite microspheres A with a particle size in the range of 0.35-0.60 mm.

[0039] In a 250 ml three-necked flask, add 30.0 g of composite microspheres A and 60 ml of dichloroethane, adjust the temperature of the water bath to 30° C., and allow the composite microspheres to swell at...

Embodiment 2

[0043] In a 500 ml three-neck flask, add 3.0 g of gelatin and 250 ml of deionized water, start stirring and raise the temperature to completely dissolve the gelatin. Stop stirring, after slightly cooling to room temperature, add 135.5 grams of 4-(4-bromobutyl) styrene, 7.5 grams of divinylbenzene and 1.0 grams of benzoyl peroxide initiator, and a mixed solution of 4.2 grams of graphene oxide . Gradually raise the temperature, react at 75°C for 5 hours, raise the temperature to 85°C for 5 hours, further raise the temperature to 92°C for 4 hours, and finally raise the temperature to 100°C for 6 hours. After the reaction, pour out the upper liquid, wash with hot water, filter, dry in an oven at 80°C, and sieve to collect composite microspheres B with a particle size in the range of 0.35-0.60 mm.

[0044] In a 250 ml three-necked flask, add 20.0 g of composite microspheres B and 50 ml of dichloromethane, adjust the temperature of the water bath to 35° C., and allow the composite ...

Embodiment 3

[0048] Add 140 grams of p-chloromethylstyrene, 13.9 grams of dialenylbenzene and 3.0 grams of azobisisobutyronitrile initiator, and 3.5 grams of graphene oxide in a 1000 milliliter three-necked flask, and stir at 65 ° C for 1.5 hours for a preliminary polymerization. Then 500 ml of deionized water in which 5.0 g of gelatin had been dissolved was added. The temperature was raised to 80°C within 1 hour, and the reaction was continued for 5 hours; the temperature was then raised to 90°C, and the reaction was continued for 6 hours, and finally the temperature was raised to 98°C, and the reaction was continued for 6 hours. After the reaction, pour out the upper liquid, wash it with hot water, then filter it, put it in an oven to dry at 80°C, and sieve it to collect composite microspheres C with a particle size in the range of 0.35-0.60 mm.

[0049] In a 500 ml three-necked flask, add 50.0 g of composite microspheres C and 150 ml of dichloromethane, adjust the temperature of the wa...

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Abstract

The invention relates to a strong-alkalinity composite ion exchange resin material and a preparation method thereof and is mainly used for solving the problems of low heat resistance and swelling resistance of the strong-alkalinity ion exchange resin in the prior art. The strong-alkalinity composite ion exchange resin material comprises the following components in percentage by weight: a) 75-90% of polymer monomer; b) 5-15% of copolymer monomer; c) 0.1-5% of graphene; and d) 0.1-10% of initiator. The technical can be used for solving the problem relatively well and can be applied to the industrial production of strong-alkalinity composite ion exchange resin material.

Description

technical field [0001] The invention relates to a strongly basic composite ion exchange resin material and a preparation method thereof. Background technique [0002] Strongly basic anion exchange resins can be used in water treatment, substance purification, concentration, separation, transformation of ionic composition of substances, decolorization of substances, and catalysts. [0003] There have been some publications on the technology of developing strongly basic anion exchange resins at home and abroad. Document SU675056 discloses introducing 2% 2-mercaptobenzimidazole in chloromethyl polystyrene resin, and then reacting with trimethylamine to prepare strong base anion exchange resin. Document JP01-75041 discloses a triethyldiamine type strong base anion exchanger having a tricyclic structure. Document JP07-24334 discloses a high-temperature-resistant anion exchanger used as a gas adsorbent, which is characterized in that there is no hydrogen on the methylene α-C be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/14C08F222/14C08F212/34C08F212/36C08F2/44C08F8/44C08K9/00C08K3/04B01J41/14
Inventor 李亚男杨为民俞峰萍何文军
Owner CHINA PETROLEUM & CHEM CORP
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