Investigating the behaviour of PGEs during first-stage leaching of a Ni-Fe-Cu-S converter matte

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dc.contributor.authorSnyders, C. A.en_ZA
dc.contributor.authorAkdogan, G.en_ZA
dc.contributor.authorThompson, G.en_ZA
dc.contributor.authorBradshaw, S. M.en_ZA
dc.contributor.authorVan Wyk, A. P.en_ZA
dc.date.accessioned2019-10-16T09:58:45Z
dc.date.available2019-10-16T09:58:45Z
dc.date.issued2018
dc.descriptionCITATION: Snyders, C. A., et al. 2018. Investigating the behaviour of PGEs during first-stage leaching of a Ni-Fe-Cu-S converter matte. Journal of the Southern African Institute of Mining and Metallurgy, 118(4):353-360, doi:10.17159/2411-9717/2018/v118n4a4.
dc.descriptionThe original publication is available at http://www.scielo.org.za
dc.description.abstractENGLISH ABSTRACT: In a first-stage atmospheric leach in a Sherritt Ni-Cu matte leach process, a Ni-Cu-Fe-S Peirce-Smith converter matte is contacted with recycled aqueous copper sulphate/sulphuric acid solution (spent solution) with the purpose of dissolving nickel, while simultaneously removing copper (via metathesis and cementation reactions) from solution. While the iron content has been found to have a significant impact on the first-stage leach, a previously expected relationship between copper and PGM behaviour has not been established clearly. For this study, a converter matte consisting mainly of heazlewoodite (Ni3S2), chalcocite (Cu2S), and awaruite (Ni3Fe) was leached in a laboratory-scale batch reactor. The temperature, acid, and copper concentration under both oxidative and non-oxidative conditions were varied, while the copper, iron, and PGEs were tracked and the pH and Eh measured. Palladium was generally found to be closely related to the behaviour of copper, while platinum did not leach. The other platinum group metals such as iridium and rhodium were found to precipitate only with accelerated precipitation being observed during Fe precipitation reactions.en_ZA
dc.description.urihttp://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S2225-62532018000400007
dc.description.versionPublisher's version
dc.format.extent8 pagesen_ZA
dc.identifier.citationSnyders, C. A., et al. 2018. Investigating the behaviour of PGEs during first-stage leaching of a Ni-Fe-Cu-S converter matte. Journal of the Southern African Institute of Mining and Metallurgy, 118(4):353-360, doi:10.17159/2411-9717/2018/v118n4a4
dc.identifier.issn2411-9717 (online)
dc.identifier.issn2225-6253 (print)
dc.identifier.otherdoi:10.17159/2411-9717/2018/v118n4a4
dc.identifier.urihttp://hdl.handle.net/10019.1/106654
dc.language.isoen_ZAen_ZA
dc.publisherSouthern African Institute of Mining and Metallurgyen_ZA
dc.rights.holderSouthern African Institute of Mining and Metallurgyen_ZA
dc.subjectPlatinum group elementsen_ZA
dc.subjectLeachingen_ZA
dc.titleInvestigating the behaviour of PGEs during first-stage leaching of a Ni-Fe-Cu-S converter matteen_ZA
dc.typeArticleen_ZA
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