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A method for preparing macroporous type highly-crosslinked acrylic acid ion exchange resin

An ion-exchange resin and acrylic-based technology, applied in the field of preparation of macroporous highly cross-linked acrylic-based ion-exchange resins, can solve problems such as non-environmental protection, poor resin quality, cumbersome resin production process, etc., achieve long water outlet cycle, reduce Dosage, effect of good hydraulic properties

Inactive Publication Date: 2018-12-18
扬州金珠树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention is to prepare a kind of macroporous type highly cross-linked acrylic ion exchange resin aimed at the poor quality of the resin produced by the current raw materials, the resin production process is loaded down with trivial details, and not being environmentally friendly;

Method used

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  • A method for preparing macroporous type highly-crosslinked acrylic acid ion exchange resin
  • A method for preparing macroporous type highly-crosslinked acrylic acid ion exchange resin
  • A method for preparing macroporous type highly-crosslinked acrylic acid ion exchange resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Macroporous highly cross-linked acrylic ion exchange resin, the synthesis steps are as follows (the following proportions are calculated based on 1 ton of finished resin):

[0029] (1) Preparation of water phase: Add 1700Kg of demineralized water into the reaction kettle, then add industrial salt with a mass of 340Kg, wait for it to completely dissolve, measure its specific gravity, adjust its range to 1.13, and add hydroxyethyl cellulose at a temperature of 30°C Vegetable 1.5Kg, control the water temperature at 50°C, stir for 30min, set aside;

[0030] (2) Prepare the organic phase: draw in 400Kg of acrylonitrile and 12Kg of methyl acrylate respectively; 27Kg of triacryl isocyanurate is put into the batching kettle; then, 3.3Kg of benzoyl peroxide is added to 35Kg of diethylene In benzene, stir evenly, then pump into the batching kettle, and finally pump 50Kg of toluene, stir for 30min, and set aside;

[0031] (3) Polymerization operation: Put the prepared organic pha...

Embodiment 2

[0035] Macroporous highly cross-linked acrylic ion exchange resin, the synthesis steps are as follows (the following proportions are calculated based on 1 ton of finished resin):

[0036] 1) Preparation of water phase: Add 1750Kg of demineralized water into the reaction kettle, then add industrial salt with a mass of 350Kg, wait for it to completely dissolve, measure its specific gravity, adjust its range to 1.14, and add hydroxyethyl cellulose at a temperature of 40°C 1.8Kg, control the water temperature at 52°C, stir for 40 minutes, and set aside;

[0037] (2) Prepare the organic phase: draw in 420Kg of acrylonitrile and 13Kg of methyl acrylate respectively; 28Kg of triacryl isocyanurate is put into the batching kettle; then, 3.5Kg of benzoyl peroxide is added to 38Kg of diethylene In benzene, stir evenly, then pump into the batching kettle, and finally pump 52Kg of toluene, stir for 30min, and set aside;

[0038] (3) Polymerization operation: Put the prepared organic phase...

Embodiment 3

[0042] Macroporous highly cross-linked acrylic ion exchange resin, the synthesis steps are as follows (the following proportions are calculated based on 1 ton of finished resin):

[0043](1) Preparation of water phase: Add 1800Kg of demineralized water into the reaction kettle, then add industrial salt with a mass of 370Kg, wait for it to completely dissolve, measure its specific gravity, adjust its range to 1.14, and add hydroxyethyl cellulose at a temperature of 40°C Vegetable 2Kg, control the water temperature at 55°C, stir for 60min, set aside;

[0044] (2) Prepare the organic phase: draw in 450Kg of acrylonitrile and 15Kg of methyl acrylate respectively; 30Kg of triacryl isocyanurate is put into the batching kettle; then, 3.7Kg of benzoyl peroxide is added to 40Kg of diethylene In benzene, stir evenly, then pump into the batching kettle, and finally pump 55Kg of toluene, stir for 30min, and set aside;

[0045] (3) Polymerization operation: Put the prepared organic phase ...

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Abstract

The invention belongs to the technical field of ion exchange resin and relates to a method for preparing macroporous type highly-crosslinked acrylic acid ion exchange resin. The method includes a stepof adding softened water into a reaction kettle, adding industrial salt, stirring the mixture, adjusting the specific gravity and temperature, then adding hydroxyethyl cellulose, and heating and stirring the mixture to obtain a water phase; a step of adding acrylonitrile, methyl acrylate and triallyl isocyanurate into a burdening kettle; a step of adding benzoyl peroxide into divinylbenzene, adding the mixture after the mixture is stirred into the burdening kettle, adding toluene, and fully stirring the mixture to obtain an organic phase; a step of mixing the organic phase and the water phasein a mass ratio of 1:3.3-3.5; a step of heating and reacting the mixture, transferring the reaction solution to a stripper, performing filtration to remove filtrate completely, adding hot water, stirring the mixture, heating and reacting the mixture and performing hot-air drying; and a step of adding sulfuric acid, heating and reacting the mixture, cooling a reaction product, and adding water fordilution. The method is innovative in China and large-scale production has not been found in enterprises. The resin prepared by the method is simple in process, excellent in effect, environmentally friendly, and pollution-free and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of ion exchange resins, in particular to a preparation method of macroporous highly cross-linked acrylic ion exchange resins. Background technique [0002] There are a wide variety of ion exchange resin products. According to the nature of the active groups it carries, it can be divided into strong acid cations, weak acid cations, strong base anions, weak base anions, chelating, amphoteric and redox resins; according to different functions and principles of action, it can be divided into water treatment Resins, adsorption resins and resin catalysts, among which water treatment resins have the most output; according to different pore types, they can be divided into gel type and macroporous type; [0003] At present, macroporous weakly acidic cation exchange resins are mainly used in the field of water treatment industry. There are two main production processes. One is to use polymethyl acrylate as the main m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/48C08F220/14C08F226/06B01J39/20
CPCC08F220/48B01J39/20C08F220/14C08F226/06
Inventor 阮圣如陈必玉张雪峰吉霞卢浩李玉琴
Owner 扬州金珠树脂有限公司
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