Chemical treatment of aluminum cathodes in zinc electrowinning

A chemical treatment of an aluminum cathode used in zinc electrowinning consists of contacting the affected areas of the aluminum cathode or the entire surface of the cathode with a dilute hydrochloric acid aqueous solution.

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Bibliographic Details
Main Authors DAOUST; DANIEL, MURPHY; TERRY J, HOULACHI; GEORGE, ST-ONGE; JEAN-PIERRE
Format Patent
LanguageEnglish
Published 28.05.1991
Subjects
APPARATUS THEREFOR
CHEMICAL SURFACE TREATMENT
CHEMISTRY
CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
DIFFUSION TREATMENT OF METALLIC MATERIAL
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
METALLURGY
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS
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Summary:A chemical treatment of an aluminum cathode used in zinc electrowinning consists of contacting the affected areas of the aluminum cathode or the entire surface of the cathode with a dilute hydrochloric acid aqueous solution.
Bibliography:Application Number: US19900516929