Method of preparing a cathode-diaphragm unit

Details Method of preparing a cathode-diaphragm unit Method of preparing a cathode-diaphragm unit

C - Chemistry, Metallurgy

25

B

204/158, 204/191

C25B 13/02 (2006.01) C25B 1/46 (2006.01) C25B 11/03 (2006.01) F41A 9/63 (2006.01) F42B 39/02 (2006.01)

Patent

CA 1190182

ABSTRACT In a method of preparing a cathode-diaphragm assembly comprising drawing a slurry of diaphragm material through a foraminous cathode whereby to deposit the diaphragm material on the foraminous cathode the improvement comprising first depositing an adherent, destructible film on the foraminous cathode, said adherent, destructible film chosen from the group consisting of waxes, polyvinyl alcohols and lacquers, and thereof depositing the fibrous diaphragm material thereon. Also disclosed is an electrolytic cell comprising an anode, foraminous cathode, and a permeable diaphragm therebetween, said diaphragm comprising a self-adherent, entangled web of slurry deposited diaphragm material, and prepared by the method comprising depositing an adherent, destructible, protective film on the foraminous cathode, said film chosen from the group consisting of waxes, polyvinyl alcohols and lacquers, and thereafter depositing the fibrous diaphragm material atop the adherent, destructible, protective film.

396314

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