Dissolution Kinetics of Chalcopyrite in Acidic Potassium Dichromate Solution

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dc.contributor.authorAydoğan, S.
dc.contributor.authorUçar, G.
dc.contributor.authorCanbazoğlu, M.
dc.date.accessioned2020-03-26T17:03:21Z
dc.date.available2020-03-26T17:03:21Z
dc.date.issued2006
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe dissolution of chalcopyrite in acidic potassium dichromate solution has been investigated with respect to the effects of sulphuric acid and potassium dichromate concentrations, by changing stirring speed, leaching temperature and particle size. It was determined that dissolution rate increased with increasing sulphuric acid concentration, potassium dichromate concentration and temperature. A particle size below 75 mu m was required to leach > 80% copper in 150 min at 90 degrees C. The kinetic study showed that the dissolution of chalcopyrite is represented by shrinking core model with diffusion through a porous product layer of sulphur. The activation energy (E-a) for the dissolution reaction was calculated as 24 kJ/mol. Pyrite dissolution from the concentrate was significant in potassium dichromate solutions because of its high oxidation potential.en_US
dc.identifier.citationAydoğan, S., Uçar, G., Canbazoğlu, M., (2006). Dissolution Kinetics of Chalcopyrite in Acidic Potassium Dichromate Solution. Hydrometallurgy, (81), 45-51. Doi: 10.1016/j.hydromet.2005.10.003
dc.identifier.doi10.1016/j.hydromet.2005.10.003en_US
dc.identifier.endpage51en_US
dc.identifier.issn0304-386Xen_US
dc.identifier.issn1879-1158en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage45en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.hydromet.2005.10.003
dc.identifier.urihttps://hdl.handle.net/20.500.12395/20434
dc.identifier.volume81en_US
dc.identifier.wosWOS:000234761700007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAydoğan, S.
dc.institutionauthorUçar, G.
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofHydrometallurgyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectChalcopyriteen_US
dc.subjectPotassium dichromateen_US
dc.subjectLeachingen_US
dc.subjectKinetic modelen_US
dc.subjectDiffusionen_US
dc.titleDissolution Kinetics of Chalcopyrite in Acidic Potassium Dichromate Solutionen_US
dc.typeArticleen_US

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