Strong-acid cation exchange resin and preparing method thereof

A technology of strong acid cation and exchange resin, applied in the field of functional polymer preparation and application, can solve the problems of waste acid discharge polluting the environment, waste of water resources and production safety, etc., and achieve the effects of high ion exchange efficiency, high density and uniform distribution.

Active Publication Date: 2014-10-29
SHANGHAI RESIN FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of strongly acidic cation exchange resin and preparation method thereof in order to solve the problems such as waste acid discharge pollu

Method used

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  • Strong-acid cation exchange resin and preparing method thereof
  • Strong-acid cation exchange resin and preparing method thereof
  • Strong-acid cation exchange resin and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A kind of strongly acidic cation exchange resin, calculated in parts by weight, its raw material composition and content are as follows:

[0057] 34.7 parts of unsaturated alkyl sulfonate

[0058] Trioctylamine 55.2 parts

[0059] 24.5 parts of hydrochloric acid

[0060] 245.5 parts of n-hexane

[0061] Styrene 0 parts

[0062] Divinylbenzene 10.1 parts

[0063] 38.6 parts of toluene

[0064] Azobisisobutyronitrile 3.3 parts

[0065] Stabilizer 8.18 parts

[0066] 34.4 parts of N,N-dimethylmethylene formamide

[0067] Sodium hydroxide 488.2 parts

[0068] The unsaturated alkyl (aryl) sulfonate is sodium p-styrene sulfonate (MS88);

[0069] The mixture of the stabilizer gelatin and hydroxymethyl cellulose in a mass ratio of 10:1;

[0070] Described sodium hydroxide is the sodium hydroxide aqueous solution that concentration is 1mol / L;

[0071] Described hydrochloric acid is the hydrochloric acid aqueous solution that mass percent concentration is 36%;

[0072...

Embodiment 2

[0087] A kind of strongly acidic cation exchange resin, calculated in parts by weight, its composition and content are as follows:

[0088] Unsaturated alkyl (aryl) sulfonate 35.6 parts

[0089] Trioctylamine 56.5 parts

[0090] 25.2 parts of hydrochloric acid

[0091] 251.7 parts of n-hexane

[0092] Styrene 0 parts

[0093] 7.9 parts of divinylbenzene

[0094] Toluene 40.7 parts

[0095] Azobisisobutyronitrile 3.4 parts

[0096] Stabilizer 8.4 parts

[0097] N,N-dimethylmethylene formamide (DMF) 35.3 parts

[0098] Sodium hydroxide 500.6 parts

[0099] The unsaturated alkyl (aryl) sulfonate is sodium p-styrene sulfonate (MS88);

[0100] The mixture of the stabilizer gelatin and hydroxymethyl cellulose in a mass ratio of 10:1;

[0101] Described sodium hydroxide is the sodium hydroxide aqueous solution that concentration is 1mol / L;

[0102] Described hydrochloric acid is the hydrochloric acid aqueous solution that volume percent concentration is 36%;

[0103] The pr...

Embodiment 3

[0116] A kind of strongly acidic cation exchange resin, calculated in parts by weight, its composition and content are as follows:

[0117] Unsaturated alkyl (aryl) sulfonate 36.6 parts

[0118] Trioctylamine 58.3 parts

[0119] 25.5 parts of hydrochloric acid

[0120] 254.7 parts of n-hexane

[0121] Styrene 2.54 parts

[0122] 2.54 parts of divinylbenzene

[0123] Toluene 43.7 parts

[0124] Azobisisobutyronitrile 3.4 parts

[0125] Stabilizer 8.5 parts

[0126] N,N-dimethylmethylene formamide (DMF) 35.6 parts

[0127] Sodium hydroxide 506.5 parts

[0128] The unsaturated alkyl (aryl) sulfonate is sodium vinyl sulfonate;

[0129] The mixture of the stabilizer gelatin and hydroxymethyl cellulose in a mass ratio of 10:1;

[0130] Described sodium hydroxide is the sodium hydroxide aqueous solution that concentration is 1mol / L;

[0131] Described hydrochloric acid is the hydrochloric acid aqueous solution that volume percent concentration is 36%;

[0132] The prepara...

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Abstract

The invention discloses strong-acid cation exchange resin and a preparing method thereof. The strong-acid cation exchange resin relates to white spherical particles having a particle size of 0.42-1.4 mm prepared by suspension polymerization initiated by free radicals, wherein oil soluble unsaturated alkyl (aryl) sulfonate and styrene are adopted as monomers and raw materials, and a divinyl monomer is adopted as a crosslinking agent, the sulfonic acid group content of the cation exchange resin is 23.5-29.2%, and the ion-exchange capacity is 2.91-3.51 meq/g. The preparing method omits a sulfonation step in preparation processes of traditional cation exchange resin, and is free of use of concentrated sulfuric acid, fuming sulfuric acid and chlorosulfonic acid which have strong oxidizing properties as a sulfonation agent, thus solving an environment pollution problem caused by large-amount discharge of waste acid, and a production safety problem in traditional processes. The strong-acid cation exchange resin is used for removal of calcium ion and magnesium ion in water, and used for catalyzing heterogeneous organic synthesis reactions, such as condensation reactions of organic acids and alcohols, and alkylation reactions of phenols.

Description

technical field [0001] The invention relates to a strongly acidic cation exchange resin and a preparation method thereof, belonging to the technical field of preparation and application of functional polymers. Background technique [0002] Ion exchange resin is a kind of functional polymer compound with a network structure of functional groups. It is an insoluble three-dimensional network skeleton, functional groups connected to the skeleton and functional groups with oppositely charged exchangeable ions. It consists of three parts. Widely used in water treatment, food industry, synthetic chemistry and petrochemical industry and other aspects. [0003] Cross-linked polystyrene-divinylbenzenesulfonic acid cation exchange resin is the most widely used variety of ion exchange resins. [0004] Sulfonic acid-based cation exchange resin is made by introducing sulfonic acid groups into the cross-linked polystyrene-divinyl skeleton structure through the sulfonation of strong oxida...

Claims

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Application Information

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IPC IPC(8): C08F212/14C08F228/02C08F212/08C08F212/36C08F220/58C08F8/12
Inventor 吴蓁仲崇哲郭青陈少彪何辛张英强
Owner SHANGHAI RESIN FACTORY
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