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dc.contributor.authorMaley, Mark
dc.contributor.authorVan Bronswijk, Wilhelm
dc.contributor.authorWatling, H.
dc.date.accessioned2017-01-30T15:31:53Z
dc.date.available2017-01-30T15:31:53Z
dc.date.created2010-03-02T20:02:08Z
dc.date.issued2009
dc.identifier.citationMaley, M. and Van Bronswijk, W. and Watling, H.R. 2009. Leaching of a low-grade, copper-nickel sulfide ore: 2. Impact of aeration and pH on Cu recovery during abiotic leaching. Hydrometallurgy. 98 (1-2): pp. 66-72.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/47214
dc.identifier.doi10.1016/j.hydromet.2009.03.016
dc.description.abstract

The conditions under which copper was retained and re-distributed in a test heap of pyrrhotite-rich, copper-nickel sulfide ore were investigated in abiotic column leaching tests. It was determined that acidity plays a key role in maximising copper recovery. During passage through the ore bed, when the leachate pH rose to >2.3, copper ions previously released to solution through the oxidation of chalcopyrite were retained by adsorption on, or reaction with, ore minerals. Lack of aeration (limited oxygen) had only a small impact on copper recovery, in association with a favourable pH environment. Possible reaction mechanisms are discussed. The results indicated the need for careful acid management in the operation of heaps of pyrrhotite-rich ores such as complex copper-nickel sulfide ores.

dc.publisherElsevier Science BV
dc.subjectPyrrhotite
dc.subjectLeaching
dc.subjectPentlandite
dc.subjectChalcopyrite
dc.titleLeaching of a low-grade, copper-nickel sulfide ore: 2. Impact of aeration and pH on Cu recovery during abiotic leaching
dc.typeJournal Article
dcterms.source.volume98
dcterms.source.number1-2
dcterms.source.startPage66
dcterms.source.endPage72
dcterms.source.issn0304386X
dcterms.source.titleHydrometallurgy
curtin.note

The link to the journal’s home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/503336/description#description. Copyright © 2009 Elsevier B.V. All rights reserved

curtin.departmentDepartment of Chemistry
curtin.accessStatusOpen access
curtin.facultyFaculty of Health Sciences
curtin.facultySchool of Public Health


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