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Novel macroporous weak acid cation exchange resin and preparation method thereof

A weak acid cation and exchange resin technology, applied in the field of ion exchange resin, can solve the problems of low cost, achieve the effects of reducing waste water, improving hydrophilicity, and reducing the preparation process

Inactive Publication Date: 2019-04-30
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of preparing macroporous weak acid cation exchange resin in the prior art, and provides a novel macroporous weak acid cation exchange resin, which will not pollute water during the preparation process, has low cost and strong product comprehensive performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A novel macroporous weak acid cation exchange resin, comprising the following raw materials in parts by weight:

[0030] Oil phase:

[0031] 30 parts of divinylbenzene

[0032] 10 parts of ethylene glycol dimethacrylate

[0033] Itaconic acid 30 parts

[0034] 10 parts methyl acrylate

[0035] Acrylonitrile 5 parts

[0036] 60 parts of toluene

[0037] 50 parts of 200# gasoline

[0038] 1 part of azobisisobutyronitrile;

[0039] water box:

[0040] 500 parts of deionized water

[0041] 1 part of 10% polyvinyl alcohol solution

[0042] 3 parts gelatin

[0043] Sodium chloride 100 parts.

Embodiment 2

[0045] A novel macroporous weak acid cation exchange resin, comprising the following raw materials in parts by weight:

[0046] Oil phase:

[0047] 40 parts of divinylbenzene

[0048] 20 parts of ethylene glycol dimethacrylate

[0049] Itaconic acid 40 parts

[0050] 15 parts methyl acrylate

[0051] Acrylonitrile 10 parts

[0052] 80 parts of toluene

[0053] 200# gasoline 70 parts

[0054] 2 parts of azobisisobutyronitrile;

[0055] water box:

[0056] 800 parts of deionized water

[0057] 10% polyvinyl alcohol solution 3 parts

[0058] 5 parts gelatin

[0059] 160 parts of sodium chloride.

Embodiment 3

[0061] A novel macroporous weak acid cation exchange resin, comprising the following raw materials in parts by weight:

[0062] Oil phase:

[0063] 35 parts of divinylbenzene

[0064] Ethylene glycol dimethacrylate 15 parts

[0065] Itaconic acid 35 parts

[0066] 12.5 parts of methyl acrylate

[0067] Acrylonitrile 7.5 parts

[0068] 70 parts of toluene

[0069] 60 parts of 200# gasoline

[0070] 1.5 parts of azobisisobutyronitrile;

[0071] water box:

[0072] 650 parts of deionized water

[0073] 10% polyvinyl alcohol solution 2 parts

[0074] 4 parts gelatin

[0075] 130 parts of sodium chloride.

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Abstract

The invention relates to a novel macroporous weak acid cation exchange resin and a preparation method thereof, and belongs to the technical field of ion exchange resins, wherein the ion exchange resincomprises an oil phase and an aqueous phase, wherein the oil phase comprises divinylbenzene, ethylene dimethacrylate, itaconic acid, methyl acrylate, acrylonitrile, toluene, 200# gasoline and azobisisobutyronitrile, and the aqueous phase comprises deionized water, a 10% polyvinyl alcohol solution, gelatin and sodium chloride. According to the present invention, no pollution is generated to waterduring the preparation, the cost is low, and the comprehensive performance of the product is strong.

Description

technical field [0001] The invention relates to a cation exchange resin and a preparation method thereof. More specifically, the invention relates to a novel macroporous weak acid cation exchange resin and a preparation method thereof, belonging to the technical field of ion exchange resins. Background technique [0002] The traditional process of preparing macroporous weak acid cation exchange resin is to use suspension polymerization technology to copolymerize divinylbenzene as crosslinking agent and (meth)acrylate monomer in the presence of porogen. Then, the obtained beads (white balls) are hydrolyzed under a certain concentration of sodium hydroxide to prepare a macroporous weak acid cation exchange resin containing weak acid groups. The main disadvantage of this process is that the weak acid equivalent of the obtained product is not high enough, especially in the process of hydrolysis to produce a large amount of alkaline wastewater, which brings great pressure to wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/36C08F222/14C08F222/02C08F220/14C08F220/46C08J9/00B01J39/20
CPCB01J39/20C08F212/36C08F222/02C08J9/00C08J2325/02C08J2335/00C08F222/102C08F220/14C08F220/46
Inventor 高川赵奕王煦怡刘咏梅
Owner CHINA BLUESTAR CHENGRAND CO LTD
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