IMPROVEMENT OF SELECTIVE COPPER EXTRACTION FROM A HEAT-TREATED CHALCOPYRITE CONCENTRATE WITH ATMOSPHERIC SULPHURIC-ACID LEACHING

Basit Öğe Kaydı
dc.contributor.authorUzun, Elif
dc.contributor.authorZengin, Mustafa
dc.contributor.authorAtilgan, Ismail
dc.date.accessioned2024-09-29T16:06:28Z
dc.date.available2024-09-29T16:06:28Z
dc.date.issued2016
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe present work focuses on the extraction of Cu, suitable for production, directly from a leach solution of a chalcopyrite concentrate as an alternative to the conventional smelting and refining method. Firstly, the main aspects of the kinetics of chalcopyrite leaching in a sulphuric-acid solution and transformation reactions of chalcopyrite at high temperatures were briefly reviewed. Secondly, atmospheric-acid leaching experiments were performed as a function of the acid content and temperature under agitation. Direct leaching experiments resulted in very low and scattered Cu recoveries, hence revealing a sulphide passivation layer on the chalcopyrite. In order to get rid of this layer, the sulphides in the chalcopyrite were transformed into sulphates with heat treatment at 500 degrees C prior to the leaching process, in which a high dissolution of species was obtained. Finally, the leaching of the pre-heated concentrate resulted in a 99.82 % Cu extraction. Consequently, optimized process parameters were proposed by comparing the Cu extraction and the increased purity of the pregnant solution without Fe impurities.en_US
dc.description.sponsorshipKarabuk University BAP Project; ASYA MADEN Coen_US
dc.description.sponsorshipAuthors wish to thank ARGETEST Co. for experimental facilities. This work was supported by a grant from the Karabuk University BAP Project and, in part, by ASYA MADEN Co.en_US
dc.identifier.doi10.17222/mit.2015.091
dc.identifier.endpage401en_US
dc.identifier.issn1580-2949
dc.identifier.issn1580-3414
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-84975092100en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage395en_US
dc.identifier.urihttps://doi.org/10.17222/mit.2015.091
dc.identifier.urihttps://hdl.handle.net/20.500.14619/6846
dc.identifier.volume50en_US
dc.identifier.wosWOS:000385008500017en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherInst Za Kovinske Materiale I In Tehnologieen_US
dc.relation.ispartofMateriali in Tehnologijeen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectchalcopyrite concentrateen_US
dc.subjectleaching heat treatmenten_US
dc.subjectpassivation layeren_US
dc.subjectcopper extractionen_US
dc.subjectselectivityen_US
dc.titleIMPROVEMENT OF SELECTIVE COPPER EXTRACTION FROM A HEAT-TREATED CHALCOPYRITE CONCENTRATE WITH ATMOSPHERIC SULPHURIC-ACID LEACHINGen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu