Process for the production of ion exchange membranes with...

Details Process for the production of ion exchange membranes with... Process for the production of ion exchange membranes with...

C - Chemistry, Metallurgy

23

C

204/202, 204/96.

C23C 14/34 (2006.01) C08J 5/22 (2006.01) C25B 9/10 (2006.01)

Patent

CA 1203774

PROCESS FOR THE PRODUCTION OF ION EXCHANGE MEMBRANES WITH COATING FOR ELECTROLYSIS ABSTRACT OF THE DISCLOSURE A process for the production of electrolytic ion exchange membranes with a coating, comprising coars- ening the surface of an ion exchange membrane by an ion-etching treatment and, thereafter, coating the coarsened surface with a substance with a low elec- trochemical activity. The use of these ion exchange membranes greatly reduces the electrolytic voltage while maintaining a high current efficiency, and enables electrolysis to be performed in a stable manner over a long period of time.

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