Journal article
SO2/O2 as an oxidant in hydrometallurgy
Minerals Engineering, Vol.13(13), pp.1319-1328
2000
Abstract
Oxygen mixed with SO2 can function as a powerful oxidant in acid solution. This paper summarises basic studies on the mechanism of SO2/O2 oxidation, the kinetics of oxidation in acidic media, and potential applications in hydrometallurgy. The SO2/O2 system readily oxidises Fe(II) to Fe(III) and provides a simple method of regenerating Fe(III) for leaching minerals like Cu2S or U3O8. It also oxidises As(III), which in the presence of iron(III) enables a stable ferric arsenate compound to be precipitated. A method for the leaching and removal of arsenic from smelter fumes is proposed. Oxidation of Mn(II) to Mn(III)/Mn(IV) oxides by SO2/O2 allows manganese impurity to be removed from leach liquors and electrolytes.
Details
- Title
- SO2/O2 as an oxidant in hydrometallurgy
- Authors/Creators
- W. Zhang (Author/Creator) - Murdoch UniversityP. Singh (Author/Creator) - Murdoch UniversityD.M. Muir (Author/Creator) - CSIRO Minerals, PO Box 90, Bentley, WA 6982, Australia
- Publication Details
- Minerals Engineering, Vol.13(13), pp.1319-1328
- Publisher
- Elsevier BV
- Identifiers
- 991005543988907891
- Copyright
- © 2000 Published by Elsevier Ltd.
- Murdoch Affiliation
- School of Chemical and Mathematical Science
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 7 Engineering & Materials Science
- 7.229 Mineral & Metal Processing
- 7.229.774 Bioleaching
- Web Of Science research areas
- Engineering, Chemical
- Mineralogy
- Mining & Mineral Processing
- ESI research areas
- Geosciences