Flotation Rate Constant Prediction for Metal Sulfide Particles

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dc.contributor.authorRalston, J.
dc.contributor.authorFornasiero, D.
dc.contributor.authorGrano, S.
dc.contributor.authorDuan, F.
dc.contributor.authorAkroyd, T.
dc.contributor.conferenceCentenary of Flotation Symposium (2005 : Brisbane, Queensland)
dc.contributor.editorJohnson, G.
dc.contributor.organisationInstitute for Mineral and Energy Resources
dc.date.issued2005
dc.description.abstractWe have determined the experimental rate constants for chalcopyrite particles floated from a complex sulfide ore and compared them with those calculated using a recently developed flotation model. The model incorporates contributions from the efficiencies of collision, attachment and stability between particles and bubbles, as well as their frequency of collision. For these calculations, the contact angle of the chalcopyrite particles in the ore was obtained independently using a surface spectroscopic approach. The calculated flotation rate constants were in good agreement with the experimental data and able to reproduce the characteristic maximum in flotation rate constant for particles of intermediate size. The values of bubble velocity and turbulent dissipation energy derived from these calculations are relatively low and may well correspond to mean values of these parameters inside the flotation cell. We have extended this approach through the application of a property based model to an operating plant, with a satisfactory outcome.
dc.description.statementofresponsibilityJ Ralston, D Fornasiero, S R Grano, J Duan and T A
dc.identifier.citationProceedings: Centenary of Flotation Symposium, 2005 / G. Jameson (ed.): pp.541-556
dc.identifier.isbn1920806318
dc.identifier.urihttp://hdl.handle.net/2440/70832
dc.language.isoen
dc.publisherAusIMM
dc.publisher.placeAustralia
dc.rightsCopyright Australasian Institute of Mining and Metallurgy
dc.titleFlotation Rate Constant Prediction for Metal Sulfide Particles
dc.typeConference paper
pubs.publication-statusPublished

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