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A kind of strongly acidic cation exchange resin and preparation method thereof

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

Active Publication Date: 2016-09-14
SHANGHAI RESIN FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 pollution environment, waste of water resources and production safety in the preparation process of above-mentioned sulfonic acid group cation exchange resin, this preparation method Environmental friendly

Method used

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  • A kind of strongly acidic cation exchange resin and preparation method thereof
  • A kind of strongly acidic cation exchange resin and preparation method thereof
  • A kind of strongly acidic cation exchange resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A strong acid 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] Toluene 38.6 parts

[0064] Azobisisobutyronitrile 3.3 parts

[0065] Stabilizer 8.18 parts

[0066] N,N-Dimethylidene formamide 34.4 parts

[0067] 488.2 parts of sodium hydroxide

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

[0069] Described stabilizer gelatin and hydroxymethyl cellulose are the mixture that is formed by 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%;

[007...

Embodiment 2

[0087] A strong acid 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] Divinylbenzene 7.9 parts

[0094] Toluene 40.7 parts

[0095] Azobisisobutyronitrile 3.4 parts

[0096] Stabilizer 8.4 parts

[0097] N,N-Dimethylmethyleneformamide (DMF) 35.3 parts

[0098] 500.6 parts of sodium hydroxide

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

[0100] Described stabilizer gelatin and hydroxymethyl cellulose are the mixture that is formed by 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%;

[010...

Embodiment 3

[0116] A strong acid 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] Divinylbenzene 2.54 parts

[0123] Toluene 43.7 parts

[0124] Azobisisobutyronitrile 3.4 parts

[0125] Stabilizer 8.5 parts

[0126] N,N-Dimethylmethyleneformamide (DMF) 35.6 parts

[0127] 506.5 parts of sodium hydroxide

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

[0129] Described stabilizer gelatin and hydroxymethyl cellulose are the mixture that is formed by 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 ...

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Abstract

The invention discloses a strongly acidic cation exchange resin and a preparation method thereof. That is to say, oil-soluble unsaturated alkyl (aryl) sulfonate and styrene are used as monomers, and divinyl monomers are used as cross-linking agents, and the particle size range of 0.42 is prepared by suspension polymerization initiated by free radicals. ‑1.4mm white spherical particles, strong acidic cation exchange resin with sulfonic acid group content of 23.5-29.2% and ion exchange capacity of 2.91-3.51meq / g. This preparation method eliminates the sulfonation process in the traditional cation exchange resin preparation process, and no longer uses strong oxidizing concentrated sulfuric acid, fuming sulfuric acid, and chlorosulfonic acid as sulfonation reagents, and solves the large amount of waste acid discharge in the traditional process Environmental pollution and production safety issues. It is used for the removal of calcium and magnesium ions in water and for catalyzing heterogeneous organic synthesis reactions, such as the condensation reaction of organic acids and alcohols, and the alkylation reaction 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 functional polymer preparation and application. Background technique [0002] Ion exchange resin is a kind of functional polymer compound with a network structure with functional groups. It is an insoluble three-dimensional network skeleton, functional groups connected to the skeleton and exchangeable ions with opposite charges. Three parts. Widely used in water treatment, food industry, synthetic chemical 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] The sulfonic acid-based cation exchange resin is made by introducing the cross-linked polystyrene-divinyl skeleton structure into the sulfonic acid group through the sulfonation of strong oxidants such as concentrated sulfur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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