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Production method of strong acid 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 low exchange speed, so as to improve exchange capacity and optimize process parameters Effect

Active Publication Date: 2016-05-25
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

[0052] The production method of strong acid styrene series cation exchange resin comprises the following steps:

[0053] (1) One-time polymerization to prepare ball A, including the following steps:

[0054] Weigh the water phase and oil phase raw materials with the following weights (kg), raise the temperature of the water phase to 40-50°C, and stir thoroughly;

[0055] water box:

[0056] Deionized water 500

[0057] Gelatin 10

[0058] ethanol 10

[0059] Hydroxyethyl Cellulose 50

[0060] Ethylenediamine 15

[0061] NaCl 40

[0062] Sodium tripolyphosphate 3

[0063] Sodium persulfate 1

[0064] Use sulfuric acid to adjust the pH of the water phase to be neutral;

[0065] Oil phase:

[0066] Styrene 470

[0067] Divinylbenzene 30

[0068] Ethyl Ethanol 30

[0069] n-heptane 20

[0070] Benzoyl peroxide 4

[0071] Add the oil phase raw material to the water phase;

[0072] Raise the temperature to 79±1°C at a rate of 5-6°C / 10 minutes, observe the parti...

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Abstract

The invention discloses a production method of strongly acidic styrene cation exchange resin. On the basis of the traditional production process, the preparation method disclosed by the invention has the characteristics that a suspension protection agent, a dispersing agent, a pore-forming agent and a complexing agent are reasonably matched, and the process parameters are optimized, so that the cation exchange resin prepared by using the preparation method is uniform in pore diameter distribution and increased in exchange capacity; and the specific surface area of the prepared ion exchange resin is more than 69m<2> / g, the proportion of mesopores which are larger than 2nm is larger than 58 percent and the complete exchange capacity reaches 5.5mmol / 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 strong-acid styrene-based 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 purpose of the present invention is to provide a production method of strong-acid styrene-based cation exchange resin. The present invention improves the dispersibility and suspension through the improvement of the water phase...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J39/22B01J39/20B01J39/16B01J39/12B01J39/08
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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