Method of regenerating cation exchange membrane

Details Method of regenerating cation exchange membrane Method of regenerating cation exchange membrane

C - Chemistry, Metallurgy

08

J

18/1186, 18/13

C08J 5/22 (2006.01)

Patent

CA 1208867

A B S T R A C T A method for regenerating a perfluorinated cation exchange polymer membrane which can give only a low current efficiency as a result of being used as a diaphragm in an electrolytic cell or an electrodialyzer, said method comprising maintaining said perfluorinated cation exchange polymer membrane at a temperature of at least 110 °C while keeping it in contact with an aqueous solution of a strong acid having a pH at ordinary temper- ature of not more than 1Ø

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