Chemistry: electrical and wave energy – Processes and products
Patent
1979-01-24
1981-02-03
Andrews, R. L.
Chemistry: electrical and wave energy
Processes and products
204128, 204252, 204266, 204291, 204292, 204293, C25B 134, C25B 1103, C25B 1106, C25B 1308
Patent
active
042486807
ABSTRACT:
Disclosed is an electrolytic cell having an anode, a cathode, and a synthetic fluoro-carbon-resin permionic membrane between the anode and cathode. The improvement is characterized by the fluorocarbon-resin permionic membrane being a fluorinated copolymer having carboxylic acid ion exchange groups and the cathode having a catalytic, non-ferrous surface. Also disclosed is a process of producing an alkali metal hydroxide by electrolyzing an aqueous alkali metal chloride brine in an electrolytic cell having the anode separated from a catalytic, non-ferrous cathode by a synthetic fluorocarbon-resin permionic membrane having carboxylic acid ion exchange groups.
REFERENCES:
patent: 3379635 (1968-04-01), Doehren
patent: 4025405 (1977-05-01), Dotson et al.
patent: 4035254 (1977-07-01), Gritzner
patent: 4065366 (1977-12-01), Oda et al.
patent: 4080278 (1978-03-01), Ravier et al.
patent: 4116804 (1978-09-01), Needes
Carlin William W.
Darlington William B.
DuBois Donald W.
Woo Roseanne M.
Andrews R. L.
Goldman Richard M.
PPG Industries Inc.
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