Aluminium cathode effects in zinc electrowinning from industrial acid sulphate electrolyte

The effects of aluminum cathode grain size and surface conditioning treatments on zinc electrodeposition from purified industrial acid sulfate electolyte were investigated. The Al cathode grain size had no effect on the long-time (15-60 min) deposit characteristics although deposits obtained using l...

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Bibliographic Details
Published in:Journal of applied electrochemistry 1986, Vol.16 (1), p.127-133
Main Authors: MACKINNON, D. J, BRANNEN, J. M
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Hydrometallurgy
Materials science
Metals, semimetals and alloys
Metals. Metallurgy
Physics
Production of metals
Production of non ferrous metals. Process materials
Specific materials
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Summary:The effects of aluminum cathode grain size and surface conditioning treatments on zinc electrodeposition from purified industrial acid sulfate electolyte were investigated. The Al cathode grain size had no effect on the long-time (15-60 min) deposit characteristics although deposits obtained using large-grain Al cathodes were often easier to strip. A study of the initial zinc nucleation (5-80s) showed that fine-grain Al cathodes had more zinc nucleation sites than large-grain cathodes. The influence of cathode preconditioning and glue on the initial zinc nucleation were also determined.
ISSN:0021-891X
1572-8838
DOI:10.1007/BF01015993