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Ion exchange resins and uses

An ion exchange resin, resin matrix technology, applied in chemical instruments and methods, other chemical processes, physical/chemical process catalysts, etc., can solve problems to be further improved, and achieve improved glass transition temperature, good heat resistance, The effect of high swelling resistance

Active Publication Date: 2021-03-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] It can be seen that although the heterogeneous catalytic system has many advantages, it still needs to be further improved in terms of the heat resistance of the carrier, the swelling resistance and the stability of the catalytic active center. Research and development of a highly active and easy-to-separate catalytic system is very important

Method used

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  • Ion exchange resins and uses
  • Ion exchange resins and uses
  • Ion exchange resins and uses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] [Example 1] Preparation of ion exchange resin

[0041] Add 47.0 grams of styrene, 2.3 grams of divinylbenzene, 30 grams of polystyrene and 1.6 grams of benzoyl peroxide initiator in a 500 milliliter three-necked flask, stir and react for 1.5 hours at 60 ° C; then add 0.6 grams of multi-walled Carbon nanotubes, 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 8 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 microsp...

Embodiment 2

[0047] [embodiment 2] ion exchange resin preparation

[0048] Add monomer mixture solution (60.0 gram styrene, 1.0 gram divinylbenzene, 60 gram polystyrene, 1.6 gram multi-walled carbon nanotubes and 1.0 gram benzoyl peroxide containing initiator in 500 milliliters of there-necked flasks, The solution was first stirred and reacted at 70°C for 0.5 hours), started the agitator, added a mixed solution of 200 ml of deionized water and 4 grams of polyvinyl alcohol, raised the temperature to 85°C, reacted for 3 hours, then raised the temperature to 90°C, and reacted for 9 hours , and finally raised the temperature to 100°C, and reacted 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 Microsphere B1.

[0049] Chloromethylation of composite microspheres: in a 500-ml three-necked f...

Embodiment 3

[0054] [embodiment 3] preparation of ion exchange resin

[0055] Add monomer mixture solution (42.5 gram styrene, 2.5 gram divinylbenzene, 10 gram polystyrene, 0.1 gram multi-walled carbon nanotube and 2.0 gram benzoyl peroxide containing initiator in 500 milliliters of there-necked flasks, The solution was first stirred and reacted at 70°C for 1.5 hours), 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, and finally the temperature was raised 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 it 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 Microsphere C1.

[0056] Chloromethylation of composite mi...

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PUM

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Abstract

The invention relates to ion exchange resin and application. The ion exchange resin has the structural general formula as shown in specification, wherein a compound as shown in specification is a macroporous nano composite resin matrix; M<-> is negative ion; POSS is a polyhedral oligomeric silsesquioxanes; a compound as shown in specification is an imidazolium cation unit; R is a connection groupbetween the POSS unit and the imidazolium cation unit; R is an alkylene or arylene; the macroporous nano composite resin matrix is a nano macroporous copolymer obtained by in-situ copolymerization ofstyrene monomers, comonomers, a nano material and a pore-foaming agent; and the nano material is selected from at least one of multiwalled carbon nanotubes, single-walled carbon nanotubes, C60 or C70fullerene.

Description

Technical field [0001] The present invention relates to an ion exchange resin and uses thereof. Background technique [0002] Alkylene carbonates such as ethylene carbonate and propylene carbonate are excellent solvents and fine chemical intermediates with a wide range of uses. As an excellent high-boiling point solvent and organic synthesis intermediate, ethylene carbonate is widely used as a solvent in textiles, printing, polymer synthesis and electrochemistry. It can also be used as a raw material for cosmetics and drugs and as an intermediate for corresponding glycols. . In recent years, ethylene carbonate has been used in the production of lithium battery electrolyte and dimethyl carbonate. The use of aliphatic polycarbonate and its various copolymers as degradable biomaterials has attracted much attention in industrial production. [0003] The traditional production method of ethylene carbonate is the phosgene method. Phosgene is highly toxic and pollutes seriously. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/42C08F8/30C08F8/24C08F257/02C08F212/08C08F212/36C08F2/44C08K7/24B01J20/26B01J31/08C07D317/38
CPCB01J20/264B01J31/08B01J2231/34C07D317/38C08F2/44C08F8/24C08F8/30C08F8/42C08F257/02C08K7/24C08K2201/011C08F212/08
Inventor 俞峰萍陶桂菊何文军
Owner CHINA PETROLEUM & CHEM CORP