Homogeneous cation exchange membrane having a multi-layer struct

Details Homogeneous cation exchange membrane having a multi-layer struct Homogeneous cation exchange membrane having a multi-layer struct

1981-04-09

1984-01-17

Andrews, R. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204 98, 204128, 204283, C25F 134, C25F 1302

Patent

active

044262710

ABSTRACT:
In cation exchange membranes having a multi-layer structure consisting of two or three layers or more each having different equivalent weight and/or different kind of ion exchange group used for the electrolysis of alkali metal chloride according to an ion exchange membrane process, a homogeneous cation exchange membrane which comprises that at least one outer layer having a lower water content of both outer layers of said membrane has a roughened surface so that the amount of hydrogen gas bubbles generated from the cathode and attached to the membrane surface is the least whereby the electrolysis voltage is the lowest and the process for the production thereof.

REFERENCES:
patent: 4191618 (1980-03-01), Coher et al.
patent: 4272353 (1981-06-01), Lawrance et al.
patent: 4323434 (1982-04-01), Yoshida et al.

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