Process for heavy metals electrowinning

Details Process for heavy metals electrowinning Process for heavy metals electrowinning

1995-09-06

1996-07-09

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing single metal

205536, 205574, 205602, 205587, C25D 116, C25D 108

Patent

active

055341314

ABSTRACT:
The conditions for electrowinning Zn, Ni, Co and Cd metals from baths based on chlorinated ammino complexes of Me(NH.sub.3).sub.n Cl.sub.m 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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