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

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...

Examples

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...

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...

Examples

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...