Electrochemical removal of chromium from chlorate solutions

Details Electrochemical removal of chromium from chlorate solutions Electrochemical removal of chromium from chlorate solutions

C - Chemistry, Metallurgy

25

F

204/66, 204/80

C25F 5/00 (2006.01)

Patent

CA 1257223

28 ABSTRACT OF THE DISCLOSURE Dichromate values, or other soluble hexavalent chromium values, are removed from cell liquor or other aqueous media containing the same by cathodically reducing the same to trivalent chromium, which deposits on the cathode as chromium hydroxide. The cathode has a high surface area three-dimensional structure which exposes the electrolyte to electrolysis for a relatively long period of time. An electrode potential of about 0 volts vs. SCE is applied to the cathode.

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