Cell for electrolyzing aqueous solutions using a porous anode se

Details Cell for electrolyzing aqueous solutions using a porous anode se Cell for electrolyzing aqueous solutions using a porous anode se

1977-04-26

1978-10-17

Edmundson, F.C.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204283, 204284, 204290F, 204295, 204296, C25B 1106, C25B 1304

Patent

active

041207726

ABSTRACT:
Electrolysis of alkali metal chloride solutions to produce chlorine and alkali metal hydroxides is accomplished in a cell comprising an anode compartment, a cathode compartment and an anode separator which divides the anode compartment from the cathode compartment. The anode separator is comprised of a porous plate of a valve metal having an electrochemically active coating on the face, and an electrochemically non-active coating on the back and a portion of the interior. The electrochemically non-active barrier layer may include resinous materials, for example, polyarylene compounds or polyolefin compounds.
The anode separator provides improved gas separation properties, eliminates the need for a separate diaphragm or membrane and enables the cell to operate with reduced power requirements.

REFERENCES:
patent: 3222265 (1965-12-01), Beer
patent: 3578572 (1971-05-01), Lee
patent: 3702267 (1972-11-01), Grot
patent: 3853739 (1974-12-01), Kolb et al.
patent: 3960697 (1976-06-01), Kircher et al.
patent: 4032427 (1977-06-01), Kadija

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