Optimization of process parameters and kinetic modelling for leaching of copper from oxidized copper ore in nitric acid solutions

Basit Öğe Kaydı
dc.authoridDemirkıran, Nizamettin/0000-0001-9021-2477
dc.authorwosidDemirkıran, Nizamettin/ABF-2443-2020
dc.contributor.authorTanaydin, Mehmet Kayra
dc.contributor.authorTanaydin, Zumra Bakici
dc.contributor.authorDemirkiran, Nizamettin
dc.date.accessioned2024-08-04T20:51:56Z
dc.date.available2024-08-04T20:51:56Z
dc.date.issued2022
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe leaching behavior of Tunceli malachite mineral was investigated in nitric acid solutions by two steps to evaluate the effect of various experimental parameters. In the first step, the optimal conditions for the leaching process were determined, while in the second step, a kinetic evaluation for the process was performed. In the optimization experiments, the concentration of nitric acid, temperature, stirring speed, and solid-to-liquid ratio were selected as the independent variables, and the central composite design method (CCD) was applied to the experimental data. At the end of the experiments, the optimal values for the concentration of nitric acid, temperature, solid-to-liquid ratio and stirring speed were determined to be 0.5 mol/L, 50 degrees C, 0.004 g/mL and 500 r/min, respectively. Under the optimal conditions, the leaching rate was found to be 99% for 120 min of reaction time. In the kinetic evaluation tests, the effects of the concentration of nitric acid, temperature, stirring speed, solid-to-liquid ratio and particle size on the leaching rate of copper from malachite were investigated. In these tests, it was determined that the leaching rate increased with the increase in the temperature, acid concentration and stirring speed, and with the decrease in the particle size and solid-to-liquid ratio. In consequence of the kinetic analysis, it was observed that the leaching kinetics followed the mixed kinetic model, and a mathematical model for the leaching process was introduced. The activation energy for this process was calculated to be 36.23 kJ/mol.en_US
dc.description.sponsorshipMunzur University Scientific Investigations Project Unit [PPMUB018-13]en_US
dc.description.sponsorshipThis work was supported by Munzur University Scientific Investigations Project Unit (PPMUB018-13).en_US
dc.identifier.doi10.1016/S1003-6326(22)65875-8
dc.identifier.endpage1313en_US
dc.identifier.issn1003-6326
dc.identifier.issn2210-3384
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85129961780en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1301en_US
dc.identifier.urihttps://doi.org/10.1016/S1003-6326(22)65875-8
dc.identifier.urihttps://hdl.handle.net/11616/100645
dc.identifier.volume32en_US
dc.identifier.wosWOS:000835493700009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofTransactions of Nonferrous Metals Society of Chinaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectleachingen_US
dc.subjectcopperen_US
dc.subjectrecoveryen_US
dc.subjectcentral composite designen_US
dc.subjectshrinking core modelen_US
dc.titleOptimization of process parameters and kinetic modelling for leaching of copper from oxidized copper ore in nitric acid solutionsen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu