Treatment of cell anodes

Details Treatment of cell anodes Treatment of cell anodes

C - Chemistry, Metallurgy

25

B

204/200

C25B 11/04 (2006.01) C25B 15/00 (2006.01)

Patent

CA 1067859

TREATMENT OF CELL ANODES ABSTRACT OF THE DISCLOSURE An electrode having a conductive platinum alloy coating and which has deteriorated in use in an electrolytic chlorate cell is heat treated at elevated temperatures of above 300°C to regenerate the coating. The regeneration of the coating is exhibited by a decreased oxygen concentration in the cell off gases after the heat treatment. Further improvement in cell characteristics in severely deteriorated anodes may be achieved by coating the anode surface with a platinum group metal prior to or during the heat treatment. - 1 -

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