Method for making a cathode, and method for lowering hydrogen ov

Details Method for making a cathode, and method for lowering hydrogen ov Method for making a cathode, and method for lowering hydrogen ov

1983-04-13

1984-03-13

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204181N, 204290R, 204128, 204 48, C25B 134, C25B 1104

Patent

active

044365993

ABSTRACT:
The invention provides an improved process for making an iron-activated cathode for a chloralkali cell, and an improved method for lowering the operating voltage of a chloralkali electrolysis cell, which comprises adding to the cathode compartment of the cell a solution of a water-soluble or caustic-soluble ferrite and passing an electric current through the cell. By virtue of the invention, the hydrogen overvoltage in the cell is lowered, and considerable operating improvement thereby attained.

REFERENCES:
patent: 4105516 (1978-08-01), Martinsons et al.
patent: 4160704 (1979-07-01), Kuo et al.
patent: 4230543 (1980-10-01), Kawasuki et al.
patent: 4298447 (1981-11-01), Copeland
patent: 4312723 (1982-01-01), McIntyre et al.
patent: 4337127 (1982-06-01), Copelanol
patent: 4339313 (1982-07-01), Rechlicz

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