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dc.contributor.authorBevilaqua, D.-
dc.contributor.authorGarcia, O.-
dc.contributor.authorTuovinen, O. H.-
dc.identifier.citationProcess Biochemistry. Oxford: Elsevier B.V., v. 45, n. 1, p. 101-106, 2010.-
dc.description.abstractThe oxidation of finely ground (-200 mu m) bornite (Cu(5)FeS(4)) by Acidithiobacillus ferrooxidans was evaluated in oxygen uptake and shake flasks experiments. The oxidation was a net acid-consuming reaction. Residual bornite was not detected by X-fray diffraction in solids after 2 days of contact in acid leach solution, indicating that the chemical and biological oxidation of bornite was relatively fast. Virtually 100% of copper solubilization was achieved in A. ferrooxidans cultures with or without ferrous iron, while in abiotic controls the copper extraction was around 30%. Bornite was not oxidized by Acidithiobacillus thiooxidans in respirometric or shake flasks experiments. Covellite (CuS) was detected as a secondary phase under all experimental conditions. Sulfur and jarosite were formed only in the presence of A. ferrooxidans. (C) 2009 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipFinnish Funding Agency for Technology and Innovation-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectIron oxidationen
dc.subjectSulfur oxidationen
dc.titleOxidative dissolution of bornite by Acidithiobacillus ferrooxidansen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionOhio State Univ-
dc.contributor.institutionTampere Univ Technol-
dc.description.affiliationSão Paulo State Univ, Dept Biochem & Chem Technol, Inst Chem, BR-14801970 Araraquara, SP, Brazil-
dc.description.affiliationOhio State Univ, Dept Microbiol, Columbus, OH 43210 USA-
dc.description.affiliationTampere Univ Technol, Dept Chem & Bioengn, FI-33101 Tampere, Finland-
dc.description.affiliationUnespSão Paulo State Univ, Dept Biochem & Chem Technol, Inst Chem, BR-14801970 Araraquara, SP, Brazil-
dc.description.sponsorshipIdFinnish Funding Agency for Technology and Innovation: 402/06-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofProcess Biochemistry-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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