Strong-alkality anion exchange resin for amphoteric homogeneous mixed bed and preparation method of strong-basicity anion exchange resin

An exchange resin and strong basic technology, which is applied in the field of strong basic anion exchange resin for amphoteric homogeneous mixed bed and its preparation, can solve the problems of huge market consumption, improve the density of functional groups, shorten the production cycle, improve the Yield effect

Pending Publication Date: 2021-12-21
中国船舶集团有限公司第七零七研究所九江分部
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the mixed bed resin is expensive, in order to improve and ensure the water quality stability of the ultrapure water system and ensure the high-quality product rate of the production line products, users use one-time use, and the market consumption is huge.

Method used

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  • Strong-alkality anion exchange resin for amphoteric homogeneous mixed bed and preparation method of strong-basicity anion exchange resin
  • Strong-alkality anion exchange resin for amphoteric homogeneous mixed bed and preparation method of strong-basicity anion exchange resin
  • Strong-alkality anion exchange resin for amphoteric homogeneous mixed bed and preparation method of strong-basicity anion exchange resin

Examples

Experimental program
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Effect test

Embodiment 1

[0074] A preparation method for an amphoteric homogeneous mixed bed strong basic anion exchange resin, characterized in that it comprises the following steps:

[0075] (1) Reference figure 1 , weigh 88% styrene, 8% divinylbenzene, 0.1% nano-nucleus, 0.05% emulsifier, 0.6% initiator and other liquid monomers according to the mass fraction, mix them evenly in proportion, and spray them into the dispersed Stir in the aqueous solution of the solvent for 0.5-3h at a stirring speed of 120-180rpm, polymerize into spherical particles of 0.3-0.6mm, then solidify the spherical particles at 75±5°C for 6-10h, and finally wash with water at 95°C for 3 hours - After 5 times, a cross-linked polystyrene-embedded framework was obtained.

[0076] in,

[0077] The nano core includes: nano titanium dioxide;

[0078] Initiators include: potassium persulfate, benzoyl peroxide;

[0079] Emulsifiers include: sodium dodecylbenzenesulfonate, ethylene oxide;

[0080] The aqueous dispersant solution...

Embodiment 2

[0083] A preparation method for an amphoteric homogeneous mixed bed strong basic anion exchange resin, characterized in that it comprises the following steps:

[0084] (1) Reference figure 1 , Weigh 92% styrene, 12% divinylbenzene, 0.3% nano-core, 0.2% emulsifier, 1.2% initiator and other liquid monomers by mass fraction, mix them evenly in proportion, and spray them into the dispersed Stir in the aqueous solution of the solvent for 0.5-3h at a stirring speed of 120-180rpm, polymerize into spherical particles of 0.3-0.6mm, then solidify the spherical particles at 75±5°C for 6-10h, and finally wash with water at 95°C for 3 hours - After 5 times, a cross-linked polystyrene-embedded framework was obtained.

[0085] in

[0086] The nano core includes: nano zirconia;

[0087] Initiators include: Benformyl peroxide;

[0088] Emulsifiers include: sodium dodecylbenzenesulfonate;

[0089] The aqueous dispersant solution includes the following raw materials in mass fractions: 3% ge...

Embodiment 3

[0092] A preparation method for an amphoteric homogeneous mixed bed strong basic anion exchange resin, characterized in that it comprises the following steps:

[0093] (1) Reference figure 1 , weigh 90% styrene, 10% divinylbenzene, 0.2% nano-core, 0.12% emulsifier, 0.9% initiator and other liquid monomers according to the mass fraction, mix them evenly in proportion, and spray them into the dispersed Stir in the aqueous solution of the solvent for 0.5-3h at a stirring speed of 120-180rpm, polymerize into spherical particles of 0.3-0.6mm, then solidify the spherical particles at 75±5°C for 6-10h, and finally wash with water at 95°C for 3 hours - After 5 times, a cross-linked polystyrene-embedded framework was obtained.

[0094] in

[0095] The nano core includes: nano silicon dioxide;

[0096] Initiators include: benzoyl peroxide;

[0097] Emulsifiers include: sodium lauryl sulfate, propylene oxide;

[0098]The aqueous dispersant solution includes the following raw materia...

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Abstract

The invention discloses a strong-alkality anion exchange resin for an amphoteric homogeneous mixed bed, and belongs to the technical field of anion exchange resins. The invention discloses a preparation method of the strong-alkality anion exchange resin. The method comprises the following steps: (1) preparing a cross-linked polystyrene embedded skeleton; (2) carrying out chlorination and alkylation reaction on the cross-linked polystyrene embedded skeleton; and (3) preparing the strong-alkality anion exchange resin by using an irradiation grafting method. According to the invention, the yield of the cross-linked polystyrene embedded skeleton is improved by utilizing a multi-channel injection method, the production period of the chlorination reaction is shortened, the yield is improved, and the production cost is further reduced; and re-layering of the mixed cation resin and anion resin in the using process can be prevented, the effluent quality is good, the periodic water production amount is large, the manufacturing and operating cost is low, energy is saved, consumption is reduced, and the ecological environment is protected.

Description

technical field [0001] The invention relates to the technical field of anion exchange resins, in particular to a strongly basic anion exchange resin for an amphoteric homogeneous mixed bed and a preparation method thereof. Background technique [0002] At present, the cationic and anionic resins need to be regenerated on the mixed bed of condensate polishing treatment after their failure. Before the regeneration, the cationic and anionic resins must be completely separated. Otherwise, the non-separated cationic and anionic resins cannot be regenerated, and crossover will occur when the separation is not complete. Pollution will ultimately affect the water quality of the mixed bed effluent and the amount of periodic water production. In order to facilitate the separation of resins, usually in the synthesis, the particle size of the cationic resin is artificially made coarse and the specific gravity is increased, while the particle size of the anionic resin is made fine and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J41/05B01J41/14B01J43/00C08F212/08C08F212/36C08F2/44C08F8/24C08F8/32C08K3/22C08K3/36
CPCB01J41/05B01J41/14C08F212/08C08F8/32C08K3/22C08K3/36B01J43/00C08K2003/2241C08K2003/2286C08K2003/2244C08K2201/011C08F212/36C08F2/44C08F8/24
Inventor 柳堤于少晖刘伟萍王李锋叶扬天鄢恒飞武永前刘晓锋余炎子
Owner 中国船舶集团有限公司第七零七研究所九江分部
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