Zinc electrowinning with gas diffusion anodes: State of the art and future developments

M. Bestetti, U. Ducati, G. Kelsall, G. Li, E. Guerra, R. Allen

Research output: Contribution to journal › Article

Abstract

Hydrogen gas diffusion anodes (HGDA) have been considered previously as alternatives to oxygen-evolving lead alloy anodes in metal electrowinning. Despite their higher capital costs, the substantial decrease in electrowinning production costs potentially offered by HGDAs is causing renewed interest in their industrial use. This paper reviews the more recent applications of hydrogen gas diffusion anodes in industrial electrowinning. Using data from the literature, a simplified economical assessment is presented for a zinc electrowinning tank house implementing hydrogen gas diffusion anodes; optimum operating current densities of about 3 kA m^-2 are predicted.

Original language	English
Pages (from-to)	459-469
Number of pages	11
Journal	Canadian Metallurgical Quarterly
Volume	40
Issue number	4
DOIs	https://doi.org/10.1179/cmq.2001.40.4.459
Publication status	Published - Oct 2001

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ASJC Scopus subject areas

Metals and Alloys

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Bestetti, M., Ducati, U., Kelsall, G., Li, G., Guerra, E., & Allen, R. (2001). Zinc electrowinning with gas diffusion anodes: State of the art and future developments. Canadian Metallurgical Quarterly, 40(4), 459-469. https://doi.org/10.1179/cmq.2001.40.4.459

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10.1179/cmq.2001.40.4.459