Process for heavy metals electrowinning

Details Process for heavy metals electrowinning Process for heavy metals electrowinning

C - Chemistry, Metallurgy

25

C

C25C 1/08 (2006.01) C25C 1/12 (2006.01) C25C 1/16 (2006.01)

Patent

CA 2156202

The conditions for electrowinning Zn, Ni, Co and Cd metals from baths based on chlorinated ammino complexes of Me(NH3)nClm type are substantially improved by the addition of small levels of dissolved Br-, which considerably reduce the cell voltage without exerting any negative effects on cathodic current yields.

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