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Preparation method of macroporous weakly basic acrylic acid series anion exchange resin

Active Publication Date: 2016-05-11
皖东高科(池州)有限公司
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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, the proportion of small pores is too large, 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

[0049] The preparation method of macroporous weakly basic acrylic acid series anion exchange resin comprises the following steps:

[0050] (1) Preparation of material A by polymerization reaction

[0051] Prepare the following weight (kg) water phase, mix and stir evenly;

[0052] Deionized water 320

[0053] Gelatin 10

[0054] Gul gum 5

[0055] Glycerin 15

[0056] Hydroxymethylcellulose 30

[0057] Triethylenetetramine 15

[0058] Sodium Sulfate 40

[0059] Sodium tripolyphosphate 20

[0060] Potassium persulfate 1

[0061] Use sulfuric acid to adjust the pH of the water phase to neutral

[0062] Weigh the raw materials with the following weight (kg), mix them and add them to the water phase, stir, and adjust the speed according to the particle size;

[0063] Methyl acrylate 35

[0064] Divinylbenzene 50

[0065] TAIC210

[0066] Methyl acrylate 10

[0067] Ferrocene 8

[0068] White oil 115

[0069] Azobisisobutyronitrile 3

[0070] Benzoyl peroxide 1...

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PUM

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Abstract

The invention discloses a preparation method of a macroporous weak alkaline acrylic anion exchange resin. Based on the traditional production process, through reasonable matching of a suspending protective agent, a dispersing agent, a pore-foaming agent, and a complexing agent and optimizing processing parameters, the anion exchange resin prepared by the method has the effects of uniform pore distribution and improved exchange capacity. According to the preparation method, the specific surface area of the prepared ion exchange resin is more than 60m<2> / g, the proportion of mesopores larger than 2nm is greater than 50%, and the complete exchange capacity reaches 10.5 mmol / g.

Description

technical field [0001] The invention belongs to a preparation method of an ion exchange resin, in particular to a preparation method of a macroporous weakly 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, the proportion of small pores is too large, 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 preparation method of macroporous weakly basic acrylic anion exchange resin. The present invention improves the dispersibility and suspension by improving the water phase,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F226/06C08F220/14C08F212/36C08F8/32C08F2/44C08J9/26B01J41/16B01J41/14B01J41/10B01J41/08B01J41/09B01J41/12
Inventor 姚能平梅德华陈建国林伟王海宽王玉兰
Owner 皖东高科(池州)有限公司