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dc.creatorLetelier G., Hugo Ernesto
dc.creatorPadilla Duran, Rafael
dc.creatorRuiz Paredes, Maria Cristina
dc.date.accessioned2016-12-27T21:48:01Z
dc.date.available2016-12-27T21:48:01Z
dc.date.issued2013
dc.identifier.isbn9781118605981
dc.identifier.isbn9781118662199
dc.identifier.urihttp://hdl.handle.net/10533/164804
dc.description.abstractMolybdenite (MoS2) concentrates are produced by differential flotation from bulk copper-molybdenum concentrates. However, complete separation of molybdenum by flotation is very difficult, thus, molybdenum concentrates produced by this route requires a further step of chemical purification in order to reduce the copper content to a suitable level for marketing. Refractory chalcopyrite (CuFeS2) is the major copper mineral impurity in these concentrates; thus the elimination of copper by leaching requires highly aggressive solutions. This paper is concerned with a novel process of chemical purification of molybdenite concentrates containing chalcopyrite as the main copper impurity. The process involves a sulfidation of the molybdenum concentrate with S2(g) at 380°C followed by a leaching stage. H2SO4-NaCl-O2 leaching of a sulfidized concentrate containing 3.4% Cu for 90 min at 100°C produced a molybdenite concentrate with less than 0.2% Cu, which is appropriate for marketing. Molybdenite dissolution was negligible in these conditions.
dc.language.isoeng
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI 2.0
dc.relation.urihttp://onlinelibrary.wiley.com/book/10.1002/9781118662199
dc.titleCOPPER REMOVAL FROM MOLYBDENITE BY SULFIDATION-LEACHING PROCESS
dc.typeCapitulo de libro
dc.countryESTADOS UNIDOS DE AMERICA
dc.bibliographicCitation.stpage217
dc.bibliographicCitation.endpage223
dc.identifier.folio1110590
dc.description.conicytprogramFONDECYT
dc.relation.projectidinfo:eu-repo/grantAgreement/Fondecyt/1110590
dc.relation.setinfo:eu-repo/semantics/dataset/hdl.handle.net/10533/93479
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.type.driverinfo:eu-repo/semantics/bookPart
dc.description.shortconicytprogramFONDECYT
dc.title.libroMATERIALS PROCESSING FUNDAMENTALS
dc.creator.libroLifeng, Zhang
dc.creator.libroAntoine, Allanore
dc.creator.libroCong, Wang
dc.creator.libroJames A., Yurko
dc.creator.libroJustin, Crapps
dc.description.libropages318
dc.publisher.editorialJOHN WILEY & SONS INC


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