ION-CONDUCTING MEMBRANE AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2015/184571

A1

The present invention belongs to the technical field of ion membranes, and specifically relates to an ion-conducting membrane and a preparation method therefor. The ion-conducting membrane consists of a perfluorinated ion exchange resin base membrane, a porous reinforcing material and a surface layer of perfluorinated sulphonic acid resin microparticles. The perfluorinated ion exchange resin base membrane consists of a resin layer which is mainly a perfluorinated sulphonic acid resin and a resin layer which is mainly a perfluorinated carboxylic acid resin. The surface layer of the present invention has good compatibility and adhesion, thus ensuring that a good degassing effect is maintained during the entire lifespan of the ion-conducting membrane. The present invention is used in the chlor-alkali industry, stably and effectively treats alkali metal chloride solutions having a wide range of concentrations, is suitable for operating in a zero pole distance electrolyser under novel high current density conditions, and has an excellent product purity index. Also provided is a preparation method for the ion-conducting membrane. The preparation method has a simple and reasonable process, and facilitates industrial production.

WANG JING (CN)
ZHANG YONGMING (CN)
YANG MIAOKUN (CN)
ZHANG HENG (CN)

PCT/CN2014/000655

December 10, 2015

July 07, 2014

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SHANDONG DONGYUE POLYMER MAT (CN)

C25B13/08; C25B1/46

CN102978654A	2013-03-20
CN1065496A	1992-10-21
JP2013163859A	2013-08-22
CN103540951A	2014-01-29
CN101773790A	2010-07-14

QINGDAO FIRST PATENT & TRADEMARK AGENT CO., LTD. (CN)
青岛发思特专利商标代理有限公司 (CN)

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