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Production method of strongly acidic cation exchange resin

A strong acidic cation and exchange resin technology, which is applied in cation exchange, cation exchange materials, organic cation exchangers, etc., can solve problems such as uneven pore size distribution, insufficient exchange capacity, and failure to meet customers, and achieve exchange capacity improvement and optimization Effect of Process Parameters

Active Publication Date: 2016-04-27
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

[0047] The production method of strongly acidic cation exchange resin comprises the following steps:

[0048] (1) One-time polymerization to prepare ball A, including the following steps:

[0049] Weigh the water phase raw materials with the following weight (kg), raise the temperature of the water phase to 40-50°C, and stir thoroughly;

[0050] Deionized water 500

[0051] Polyvinyl alcohol 50

[0052] Ethylenediamine 15

[0053] NaCl 40

[0054] Sodium persulfate 1

[0055] Adjust pH to neutral with oxalic acid

[0056] Weigh the oil phase raw materials with the following weight (kg) and add them to the water phase;

[0057] Styrene 460

[0058] Divinylbenzene 30

[0059] Ferrocene 15

[0060] Benzoyl peroxide 1

[0061] Azobisisobutyronitrile 2

[0062] Raise the temperature to 79±1°C at a rate of 5-6°C / 10 minutes, observe the particle size and shape of the spheres;

[0063] Incubate at 76-80°C for 3-4h, then raise the temperature to 95±1°C for 5-6h afte...

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Abstract

The invention discloses a production method of a strong-acid 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 is greater than 50%, the complete exchange capacity reaches 5.5 mmol / g, and the water ratio is 43%.

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 acidic 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 strongly acidic cation exchange resin, the present invention makes dispersibility, suspending property improve through the improvement of water phase, and then ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J39/20B01J39/08B01J39/16B01J39/05B01J39/17
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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