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dc.contributor.authorNyembwe, Kolela J.
dc.contributor.authorFosso-Kankeu, Elvis
dc.contributor.authorWaanders, Frans
dc.contributor.authorMalenga, Edward Ntumba
dc.date.accessioned2020-02-27T07:10:38Z
dc.date.available2020-02-27T07:10:38Z
dc.date.issued2018
dc.identifier.citationNyembwe, K.J. et al. 2018. Mineralogical observation made during the kinetic dissolution study of chalcopyrite mineral in sulphate media under free pH at room temperature. 10th International Conference on Advances in Science, Engineering, Technology & Healthcare (ASETH-18), 19-20 Nov 2018, Cape Town, South Africa: 148-152. [https://doi.org/10.17758/EARES4.EAP1118240]en_US
dc.identifier.isbn978-81-938365-2-1
dc.identifier.urihttp://hdl.handle.net/10394/34203
dc.identifier.urihttps://www.eares.org/siteadmin/upload/6547EAP1118240.pdf
dc.identifier.urihttps://doi.org/10.17758/EARES4.EAP1118240
dc.description.abstractAn attempt to determine the various phenomena at play and leaching mechanism of chalcopyrite dissolution, was conducted on a chalcopyrite concentrate. The study was performed at atmospheric conditions (room temperature) in a stirred Erlenmeyer flask with 10% solid at free pH in acidic sulphate system. It appears that, the mineral dissolution is to some extent dependent on the pH. The Cu dissolution curve was characterized at the early stage by a rapid withdrawal of both copper and solid residue. Leachate solid residue characterization results, obtained from the X-ray diffraction revealed the presence of intermediate minerals phases including bornite, covelite and chalcocite. Thermodynamic calculations predict that the dissolution of bornite and chalcocite would be spontaneous while covelite was found to be refractory. In addition to that, sulfur and gangue related mineral were identified as the dissolution reaction productsen_US
dc.language.isoenen_US
dc.publisherEARETen_US
dc.subjectChalcopyriteen_US
dc.subjectDissolutionen_US
dc.subjectMechanismen_US
dc.subjectMineral phasesen_US
dc.titleMineralogical observation made during the kinetic dissolution study of chalcopyrite mineral in sulphate media under free pH at room temperatureen_US
dc.typePresentationen_US
dc.contributor.researchID24838616 - Fosso-Kankeu, Elvis
dc.contributor.researchID10059571 - Waanders, Frans Boudewijn
dc.contributor.researchID29936470 - Nyembwe, Kolela J.


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