Process for the production of ion exchange membranes with coating for electrolysis
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United States of America Patent
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Mar 5, 1985
Grant Date -
N/A
app pub date -
Apr 7, 1983
filing date -
Apr 9, 1982
priority date (Note) -
Expired
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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.
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