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dc.contributor.authorMcGrath, Teresa
dc.contributor.authorEksteen, Jacques
dc.contributor.authorHeath, J.
dc.date.accessioned2017-01-30T14:03:16Z
dc.date.available2017-01-30T14:03:16Z
dc.date.created2015-05-22T08:32:24Z
dc.date.issued2015
dc.identifier.citationMcGrath, T. and Eksteen, J. and Heath, J. 2015. The behaviour of free gold particles in a simulated flash flotation environment. The Journal of The Southern African Institute of Mining and Metallurgy. 115 (2): pp. 103-112.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/37446
dc.description.abstract

A reliable laboratory method to characterize the response of free gold particles to flash flotation conditions has been developed. The test has been performed on free milling gold ores as well as synthetic ores, using either a gravity concentrate or gold powder as the gold source, to assess the floatability of gold particles. Trends in free gold flotation kinetics, as well as size and milling effects, were identified for gold recovery based on the different feed types, reagent dosages, and residence times. It was shown that the ultimate recoveries and kinetic trends of gold particles from the gravity concentrate could be enhanced with increased dosage of collector, potassium amyl xanthate. Interestingly, in comparison to gravity-recoverable gold, recovery from pure Au powders was better in collectorless flotation, and cumulative recovery decreased with higher levels of collector addition. Improved coarse particle recovery appeared linked to increased collector additions for both the gravity concentrate and the pure gold powders. In general, coarse gold particles demonstrated slower kinetic rates than the fine or intermediate components incomparable tests.

dc.publisherSouthern African Institute of Mining and Metallurgy
dc.relation.urihttp://www.saimm.co.za/Journal/v115n02p103.pdf
dc.subjectflotation
dc.subjectnatural hydrophobicity
dc.subjectflash flotation
dc.subjectgold
dc.subjectkinetics
dc.titleThe behaviour of free gold particles in a simulated flash flotation environment
dc.typeJournal Article
dcterms.source.volume115
dcterms.source.number2
dcterms.source.startPage103
dcterms.source.endPage112
dcterms.source.issn2225-6253
dcterms.source.titleThe Journal of The Southern African Institute of Mining and Metallurgy
curtin.note

Copyright © 2015 Southern African Institute of Mining and Metallurgy

curtin.departmentWestern Australian School of Mines
curtin.accessStatusOpen access


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