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Production method of high-exchange-capacity macroporous strongly-alkaline acrylic acid series anion exchange resin

A technology of exchange resin and production method, which is applied in anion exchange, ion exchange, chemical instruments and methods, etc., can solve problems such as insufficient exchange capacity, uneven pore size distribution, and failure to satisfy customers, and achieve optimized process parameters and uniform pore size distribution , The effect of improving the exchange capacity

Active Publication Date: 2013-04-03
ANHUI WANDONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the exchange capacity of the current anion and cation exchange resins has been effectively improved, the pore size distribution is uneven and the exchange rate is low.
Insufficient switching capacity and other issues cannot meet customer requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] A kind of production method of macroporous strongly basic acrylic acid series anion exchange resin with high exchange capacity:

[0039] (1) Preparation of ball A by polymerization, including the following steps:

[0040] Weigh the water phase raw materials with the following weight (kg), mix and stir evenly,

[0041] Deionized water 600

[0042] Hydroxyethyl Cellulose 30

[0043] Ethylenediamine 15

[0044] Sodium chloride 40

[0045] Use sulfuric acid to adjust the pH of the water phase to neutral

[0046] Weigh the raw materials according to the following weight (kg), add the mixed raw materials into the water phase, and stir;

[0047] Methyl acrylate 365

[0048] Divinylbenzene 20

[0049] TAIC 6

[0050] Tetrahydrofuran 20

[0051] Xylene 30

[0052] Triethylene glycol diacetate 10

[0053] Isobutanol 115

[0054] Ferrocene 8

[0055] Benzoyl Peroxide 3

[0056] Slowly heat up to 69-72°C;

[0057] The exothermic reaction is relatively strong,...

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PUM

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Abstract

The invention discloses a production method of high-exchange-capacity macroporous strongly-alkaline acrylic acid series anion exchange resin. Based on the traditional production technology, by reasonably matching a suspension protection agent, a dispersing agent, a pore forming agent and a complexing agent and optimizing the technological parameters, the anion exchange resin prepared by the method realizes uniform pore size distribution and increases the exchange capacity; and the specific surface area of the prepared ion exchange resin can exceed 70m<2> / g, the pores larger than 2nm account for over 55%, and the total exchange capacity reaches 5.2mmol / g.

Description

technical field [0001] The invention belongs to a preparation method of an ion exchange resin, in particular to a production method of a high exchange capacity macroporous strongly basic acrylic anion exchange resin. Background technique [0002] Anion and cation exchange resins are widely used in water treatment, material purification, concentration, separation, transformation of material ion composition, material decolorization, and catalysts. Although the exchange capacity of current anion and cation exchange resins has been effectively improved, the pore size distribution is uneven and the exchange rate is low. Insufficient switching capacity and other issues cannot meet customer requirements. Contents of the invention [0003] The purpose of the present invention is to provide a production method of high-capacity macroporous strong-basic acrylic anion-exchange resin. The present invention improves dispersion and suspension by improving the water phase, thereby increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/02C08F220/14C08F212/36C08F8/32B01J41/14
Inventor 姚能平梅德华陈建国林伟王海宽王玉兰
Owner ANHUI WANDONG CHEM