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A kind of production method of strongly basic acrylic acid series skeleton anion exchange resin

A technology of acrylic and exchange resins, which is applied in the production field of strongly basic acrylic-based anion exchange resins, which can solve problems such as uneven pore size distribution, insufficient exchange capacity, and failure to satisfy customers, so as to improve exchange capacity and optimize process parameters. Effect

Active Publication Date: 2015-08-05
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, 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

[0039] A kind of production method of strongly basic acrylic acid series skeleton anion exchange resin:

[0040] (1) Preparation of ball A by polymerization, including the following steps:

[0041] Weigh the water phase raw materials with the following weight (kg), and stir them evenly;

[0042] Deionized water 400

[0043] Ethanol 10

[0044] Polyethylene glycol 50

[0045] Hydroxymethylcellulose 30

[0046] Ethylenediamine 15

[0047] Sodium chloride 40

[0048] Sodium persulfate 1

[0049] Use sulfuric acid to adjust the pH of the water phase to neutral

[0050] Weigh the oil phase raw materials according to the following weight (kg): Add the mixed oil phase raw materials into the water phase and stir;

[0051] Methyl acrylate 365

[0052] Divinylbenzene 20

[0053] TAIC 6

[0054] Isobutanol 115

[0055] 200# solvent oil 50

[0056] Ferrocene 10

[0057] Azobisisobutyronitrile 3

[0058] Slowly heat up to 69-72°C;

[0059] The exothermic reaction is...

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Abstract

The invention discloses a production method of a strongly-alkaline acrylic framework type anion exchange resin. According to the production method, a suspension protective agent, a dispersing agent, a pore-foaming agent and a complexing agent are reasonably matched based on conventional production technology, and the technological parameters are optimized, so that the anion exchange resin prepared by the method is uniform in pore size distribution and high in exchange capacity; and the anion exchange resin prepared by the method has the specific surface area being up to 70m<2> / g, the proportion of mesopores larger than 2nm is more than 50%, and the complete cxchange capacity is up to 6.5mmol / 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 strongly basic acrylic acid-based 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 kind of production method of strongly basic acrylic acid series skeleton anion exchange resin, the present invention makes dispersibility, suspensibility improve by the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J41/16
Inventor 姚能平梅德华陈建国林伟王海宽王玉兰
Owner ANHUI WANDONG CHEM