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Production method of strong-acid compound styrene cation exchange resin

A cation exchange and styrene-based technology, applied in cation exchange, cation exchange materials, ion exchange, etc., can solve problems such as uneven pore size distribution, insufficient exchange capacity, and failure to meet customers, so as to improve exchange capacity and optimize process parameters Effect

Active Publication Date: 2015-07-08
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

[0036] The preparation method of strong acid composite styrene series cation exchange resin comprises the following steps:

[0037] (1) Preparation of ball A by polymerization, including the following steps:

[0038] Weigh the water phase raw materials with the following weights (kg), mix them, heat up to 40-50°C and stir thoroughly;

[0039] Deionized water 500

[0040] Gelatin 30

[0041] Hydroxyethyl Cellulose 30

[0042] Ethylenediamine 15

[0043] Sodium chloride 40

[0044] Sodium persulfate 1

[0045] Adjust pH to 6.8 with sulfuric acid

[0046] Weigh the raw materials with the following weight (kg), mix them and add them to the water phase, turn on the machine and stir, and adjust the speed according to the particle size;

[0047] Styrene 520

[0048] Divinylbenzene 70

[0049] Methyl acrylate 30

[0050] Xylene 20

[0051] Ferrocene 10

[0052] Benzoyl Peroxide 5

[0053] Raise the temperature to 79±1°C at a rate of 5-6°C / 10 minutes, observe the par...

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Abstract

The invention discloses a production method of a strong-acid compound styrene cation 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 isgreater than 50%, the complete exchange capacity reaches 5.5 mmol / g, and the water ratio is 46%.

Description

technical field [0001] The invention belongs to a preparation method of ion exchange resin, in particular to a production method of strong acid composite styrene series cation 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 object of the present invention is to provide a kind of production method of strong acid composite styrene series cation exchange resin, the present invention makes dispersibility, suspensibility improve through the impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J39/22B01J39/20B01J39/16B01J39/08
Inventor 姚能平梅德华陈建国林伟王海宽王玉兰
Owner ANHUI WANDONG CHEM
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