A model study of copper rougher recovery optimisation at PT Freeport Indonesia

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dc.contributor.authorGrano, S.
dc.contributor.authorAkroyd, T.
dc.contributor.authorMular, M.
dc.contributor.authorNelson, M.
dc.contributor.conferenceMill Operators' Conference (9th : 2007 : Fremantle, Western Australia)
dc.contributor.organisationInstitute for Mineral and Energy Resources
dc.date.issued2007
dc.description.abstractA fundamental model, which considers the subprocesses of particle collection by bubbles in flotation, is applied to two comprehensive flotation surveys in the rougher stages of C3 concentrator, PT Freeport Indonesia. The flotation surveys focused on the collection of: • cell-by-cell and size-by-size metallurgical, • cell hydrodynamic, and • pulp and surface chemistry information. The two surveys were conducted at significantly different feed tonnages, giving rise to significantly different feed particle size distributions, pulp densities and mean pulp residence times. A series of model simulations are performed with the aim of quantifying changes in copper recovery, on both a size-by-size and unsized basis, with changes in values of the hydrodynamic parameters and hydrophobicity of the copper sulfide mineral. This was carried out in an effort to identify the most promising route to increase overall copper recovery in roughing. It was found that by increasing the hydrophobicity of the copper sulfide mineral surfaces it became possible to optimise cell hydrodynamics, which targeted increased fine (-12 μm) copper sulfide mineral recovery but without adversely affecting coarse (+150 μm) copper sulfide mineral recovery.
dc.description.statementofresponsibilityS. R. Grano, T. Akroyd and M. A. Mular
dc.description.urihttp://www.ausimm.com.au/publications/epublication.aspx?ID=2326
dc.identifier.citationProceedings of the Ninth Mill Operators' Conference Proceedings, 2007: pp.25-37
dc.identifier.isbn978-1-920806-60-6
dc.identifier.urihttp://hdl.handle.net/2440/65841
dc.language.isoen
dc.publisherAustralasian Institute of Mining and Metallurgy
dc.relation.ispartofseriesAustralasian Institute of Mining and Metallurgy Publication Series
dc.rightsThe Australasian Institute of Mining and Metallurgy holds copyright for all papers published by The AusIMM.
dc.titleA model study of copper rougher recovery optimisation at PT Freeport Indonesia
dc.typeConference paper
pubs.publication-statusPublished

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