Process for the production of ion exchange membranes with coatin

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

1983-04-07

1985-03-05

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

204192SP, 204192E, 204296, 427 40, 427122, 4271263, C23C 1500, C25B 1300

Patent

active

045029318

ABSTRACT:
A process for the production of electrolytic ion exchange membranes with a coating, comprising coarsening the surface of an ion exchange membrane by an ion-etching treatment and, thereafter, coating the coarsened surface with a substance with a low electrochemical 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.

REFERENCES:
patent: 4253922 (1981-03-01), Welch
patent: 4272353 (1981-06-01), Lawrance
patent: 4323434 (1982-06-01), Yoshida
patent: 4328086 (1982-05-01), Takenaka
patent: 4349422 (1982-09-01), Maloney

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