Prevention of cathode corrosion during electrowinning

Details Prevention of cathode corrosion during electrowinning Prevention of cathode corrosion during electrowinning

1996-12-09

1998-11-17

Gorgos, Kathryn L.

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing single metal

205575, 205580, 205581, 205582, 205504, 205585, C25C 112

Patent

active

058371230

ABSTRACT:
A method to prevent corrosion of a stainless steel cathode in a copper electrowinning system uses compounds added to the electrowinning solution which reduce the level of free chlorine. Examples of such compounds are thiourea, alkyl sulphonate surfactants and protein glues.

REFERENCES:
patent: 3883403 (1975-05-01), Ettel
patent: 5215646 (1993-06-01), Wolski
patent: 5366612 (1994-11-01), Clouser
patent: 5468353 (1995-11-01), Anich

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