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A kind of preparation method of solvent-free green styrene series cation exchange resin

A cation exchange and styrene-based technology, which is applied in the field of preparation of green styrene-based cation-exchange resins, can solve health hazards and other problems, and achieve the effects of reducing pollution, increasing skeleton elasticity, and not being easily broken

Active Publication Date: 2020-11-27
江苏国创新材料研究中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this invention is on the basis of prior art, to provide a kind of preparation method of solventless green styrenic cation exchange resin, can solve the dichloroethane widely used during sulfonation reaction in the current cation exchange resin production process Problems that will cause certain harm to the environment and human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 250g deionized water was added three-necked flask, 4g of anhydrous sodium sulfate, 0.5g of polyvinyl alcohol, the aqueous phase A arranged, again added to the aqueous phase A styrene 100g, divinylbenzene 6g, initiator 1g, three trimethylolpropane tris (3-mercaptopropionate) esters arranged 0.5g of an oil phase a, open mixing, heating the polymerization, and then for 4 hours, the washing and drying a poly white ball. 120g deionized water was added in the three-necked flask, dried over anhydrous sodium sulfate 1.5g, 0.2g of polyvinyl alcohol aqueous phase configuration B, a poly-white ball is added, stirred open to warm to 32 ℃, styrene was added thereto 25g, divinylbenzene 1g, trimethylolpropane tris (3-mercaptopropionate) esters arranged 0.2g of an oil phase B, swelling two hours, aqueous phase was separated. Then add 300g of deionized water, 0.5g of polyvinyl alcohol aqueous phase configuration C, gradually heating, insulation 8 hours After the polymerization, the aqueous ...

Embodiment 2

[0053] In the three-neck flask was added 250g of deionized water, 4g of anhydrous sodium sulfate, 0.5g of polyvinyl alcohol, configured aqueous phase A, the water phase was added again styrene 100g, divinylbenzene 6.8g, initiator 1g, two glycol methacrylate arranged 0.8g of an oil phase a, open mixing, heating the polymerization, and then for 4 hours, the washing and drying a poly white ball. 120g deionized water was added in the three-necked flask, dried over anhydrous sodium sulfate 1.5g, 0.2g of polyvinyl alcohol aqueous phase configuration B, a Poly added white stirring opening ball warmed to 32 ℃, styrene was added thereto 25g, divinylbenzene 2g , ethylene glycol dimethacrylate 0.5g of an oil phase B arranged, swelling two hours, aqueous phase was separated. Then add 300g of deionized water, 0.5g of polyvinyl alcohol aqueous phase configuration C, gradually heating, insulation 8 hours After the polymerization, the aqueous phase separated, to obtain dimeric white ball, washing...

Embodiment 3

[0057] In the three-neck flask was added 250g of deionized water, 4g of anhydrous sodium sulfate, 0.5g of polyvinyl alcohol, configured aqueous phase A, the water phase was added again styrene 100g, divinylbenzene 7g, initiator 1g, ethylene diethyl allyl alcohol 1g arranged to the oil phase a, open mixing, heating the polymerization, and then for 4 hours, the washing and drying a poly white ball. 120g deionized water was added in the three-necked flask, dried over anhydrous sodium sulfate 1.5g, 0.2g of polyvinyl alcohol aqueous phase configuration B, a Poly added white stirring opening ball warmed to 32 ℃, styrene was added thereto 25g, divinylbenzene 1.2 g, diallyl ethylene glycol diethyl arranged 0.5g of an oil phase B, swelling two hours, aqueous phase was separated. Then add 300g of deionized water, 0.5g of polyvinyl alcohol aqueous phase configuration C, gradually heating, insulation 8 hours After the polymerization, the aqueous phase separated, to obtain dimeric white ball, ...

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PUM

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Abstract

The invention relates to a method for preparing no-solvent green styrene-series cation exchange resin and belongs to the field of preparation of cation exchange resin. A crosslinking agent is adoptedto improve the elasticity and the pressure resistance of a styrene resin framework; a secondary polymerization method is adopted to increase the strength of the frameworl; high-concentration sulfuricacid is adopted to quicken a reaction and to improve the efficiency; and a multi-gradient concentration step-by-step acid nesting method to reduce intense heat release of sulfuric acid during cleaning. Disadvantages of a process which adopts dichloroethane as a swelling agent for a synthetic reaction are avoided, resin with the same performance and indexes as ion exchange ion which is prepared bynot taking dichloroethane as the swelling agent, and owing to frequent use of a water phase, environmental pollution of the water phase can be reduced. Resin prepared by the method is a dichloroethane-residue-free green product, and can be more deeply applied to industries including drinking water, food, medicines and the like.

Description

Technical field [0001] The present invention belongs to the field of preparing cation exchange resin, particularly relates to a method for preparing solvent-free green styrene cation exchange resin. Background technique [0002] Styrene resin is the world's largest output of resin, because it has a stable physical and chemical properties, long life cycle, etc. and has been to get people's attention, now widely used in electric power, food, pharmaceuticals, petrochemicals, electronics , in metallurgy and environmental protection, the development of electric power, chemical, pharmaceutical and military industry had a tremendous impact. Wherein the cation exchange resin is mainly used to soften water, removing harmful toxic heavy metal ions, the food industry, pharmaceutical and other separation and purification. [0003] With the social and economic development, the application of various sectors of the cation exchange resin made more stringent requirements, especially in drinking ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F257/02C08F212/08C08F212/36C08F8/36B01J39/19
CPCB01J39/19C08F8/36C08F212/08C08F257/02C08F212/36
Inventor 周伟伟刘莉莉李正斌王亚东颜秉迅郭鹏彭春杰
Owner 江苏国创新材料研究中心有限公司
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