Preparation method of perfluorinated quaternary ammonium type strong base anion exchange resin

A technology for exchanging resin and anion, applied in the direction of anion exchange, ion exchange, chemical instruments and methods, etc., can solve the problems of affecting the use effect of industrial equipment, reducing resin strength, long process flow, etc., to achieve enhanced binding force and compatibility. Improve and expand the effect of application scope

Active Publication Date: 2015-07-01
上海邢东化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above known technical process is long, the yield is low, the cost is high, and the problem of resin strength reduction after long-term use has affected the use effect in industrial devices.

Method used

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  • Preparation method of perfluorinated quaternary ammonium type strong base anion exchange resin
  • Preparation method of perfluorinated quaternary ammonium type strong base anion exchange resin
  • Preparation method of perfluorinated quaternary ammonium type strong base anion exchange resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0025] Add 100Kg of chloromethylated polystyrene spheres into a 500L reactor, swell in 200Kg of trimethylamine aqueous solution, add 10Kg of perfluorotriethylamine, stir and react at 40°C for 20h, and the reaction is completed to obtain perfluoroquaternary ammonium Strongly basic anion exchange resin. The resulting product number is SX-2.

Embodiment 3

[0027] Add 100Kg chloromethylated polystyrene spheres into a 500L reactor, swell in 500Kg trimethylamine aqueous solution, add 50Kg perfluorotriethylamine, stir and react at 70°C for 10 hours, and the reaction is completed to obtain perfluoroquaternary ammonium Strongly basic anion exchange resin. The resulting product number is SX-3.

Embodiment 4

[0029] The perfluorotertiary amine is perfluorotripropylamine, and the others are the same as in Example 1. The resulting product number is SX-4.

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PUM

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Abstract

The invention provides a preparation method of perfluorinated quaternary ammonium type strong base anion exchange resin. The preparation method is characterized by preparing the strong base anion exchange resin by adopting chloromethyl polystyrene to react with perfluorinated tertiary amine and trimethylamine simultaneously. The preparation method has the beneficial effects that the compatibility between aminating agents and chloromethylated beads is improved, the efficiency of aminating reaction is improved, the binding force of bonds between alkylbenzylamine and alkyl N-C is reinforced, amino is not easy to fall of, and the resin can be used at a higher temperature; by introducing fluorine-containing groups, the corrosion resistance of a resin insert is reinforced and the surface of the sphere is protected, thus prolonging the service life and expanding the application range of the resin.

Description

technical field [0001] The invention relates to a preparation method of a strongly basic anion exchange resin, in particular to a preparation method of a perfluoroquaternary ammonium type strongly basic anion exchange resin. Background technique [0002] The strong base resin can be obtained by linking the quaternary ammonium group to the polymer skeleton. Strong base anion exchange resins can be used in water treatment, substance purification, concentration, separation, transformation of ionic composition of substances, decolorization of substances and catalysts, etc., but the use temperature of strong base anion exchange resins, especially hydroxyl resins, is limited to 60°C Below, this limits the scope of application of strong base anion exchange resins [0003] There are mainly two ways for strong base anion exchange resin to undergo thermal degradation. The one is that the amine group falls off, that is, the bond between the benzyl group and the amine group is broken f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F12/08C08F8/44B01J41/14
Inventor 王琪宇
Owner 上海邢东化工科技有限公司
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