TY - JOUR
T1 - Zinc electrowinning with gas diffusion anodes
T2 - State of the art and future developments
AU - Bestetti, M.
AU - Ducati, U.
AU - Kelsall, G.
AU - Li, G.
AU - Guerra, E.
AU - Allen, R.
PY - 2001/10
Y1 - 2001/10
N2 - 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.
AB - 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.
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U2 - 10.1179/cmq.2001.40.4.459
DO - 10.1179/cmq.2001.40.4.459
M3 - Article
AN - SCOPUS:0035483830
VL - 40
SP - 459
EP - 469
JO - Canadian Metallurgical Quarterly
JF - Canadian Metallurgical Quarterly
SN - 0008-4433
IS - 4
ER -