Precipitation of selenium from copper electrowinning solutions

Details Precipitation of selenium from copper electrowinning solutions Precipitation of selenium from copper electrowinning solutions

C - Chemistry, Metallurgy

25

C

204/68

C25C 1/12 (2006.01)

Patent

CA 1113034

Abstract of the Disclosure Selenium is removed from copper electrolytes by adding a substance selected from the group consisting of metals above copper in the electromotive series, excluding alkali metals, such as nickel powder, cobalt powder and iron powder. Sodium sulfide can also be used along with a subsequent addition of ferric sulfate. The amount of the reactive substance added should be sufficient to reduce the selenium content to below 2 ppm.

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