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dc.contributor.authorOraby, E.
dc.contributor.authorBrowner, Richard
dc.contributor.authorNikraz, Hamid
dc.date.accessioned2017-01-30T14:36:28Z
dc.date.available2017-01-30T14:36:28Z
dc.date.created2014-03-11T20:00:55Z
dc.date.issued2014
dc.date.submitted2014-03-12
dc.identifier.citationOraby, E.A. and Browner, R.E. and Nikraz, H.R. 2014. Effect of silver in thiosulfate leaching of gold-silver alloys in the presence of copper and ammonia relative to pure gold and silver. Mineral Processing and Extractive Metallurgy Review. 35 (2): pp. 136-147.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/39735
dc.identifier.doi10.1080/08827508.2012.725684
dc.description.abstract

One promising alternative to cyanide for the leaching of gold is thiosulfate due to its low toxicity and efficiency in leaching gold from low-grade and carbonaceous ores and concentrates. Much of the published research focuses to optimizing the reagent concentrations to develop a suitable process for industrial applications. However, there are few studies on the effect of silver content on gold dissolution rate in the thiosulfate leaching system. In this paper, the dissolution rate of pure gold, pure silver, and gold–silver alloys of silver compositions, 4, 8, 20, and 50 wt% are reported. The effects of various parameters on the rate of gold and silver dissolution have been determined. The results show that the pure silver dissolution rate is around 6.89 times greater than pure gold. The results show that silver enhances gold dissolution in thiosulfate solutions. The dissolution rate of gold from pure gold is higher than that obtained from 4% and 8% silver alloys, but less than that obtained from 20% and 50% silver alloys.

dc.publisherManey Publishing
dc.subjectgold-silver alloys
dc.subjectsilver
dc.subjectthiosulfate
dc.subjectreaction kinetics
dc.subjectgold
dc.subjectleaching
dc.titleEffect of silver in thiosulfate leaching of gold-silver alloys in the presence of copper and ammonia relative to pure gold and silver.
dc.typeJournal Article
dcterms.dateSubmitted2014-03-12
dcterms.source.volume35
dcterms.source.number2
dcterms.source.startPage136
dcterms.source.endPage147
dcterms.source.issn08827508
dcterms.source.titleMineral Processing and Extractive Metallurgy Review
curtin.digitool.pid196277
curtin.pubStatusPublished
curtin.department
curtin.identifier.scriptidPUB-SE-MEE-RB-79404
curtin.accessStatusFulltext not available


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