Electrochemistry of chalcopyrite

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dc.contributor.authorGomez, C
dc.contributor.authorFigueroa, M
dc.contributor.authorMunoz, J
dc.contributor.authorBlazquez, ML
dc.contributor.authorBallester, A
dc.date.accessioned2024-01-10T13:47:56Z
dc.date.available2024-01-10T13:47:56Z
dc.date.issued1996
dc.description.abstractThe electrochemical response of a massive chalcopyrite electrode at two different temperatures, 25 degrees C and 68 degrees C, were compared, The electrolyte used in the experiments was an acidic medium (0.4 g . l(-1) (NH4)(2)SO4, 0.5 g . l(-1) MgSO4 . 7H(2)O, 0.2 g . l(-1) K2HPO4 at pH = 2) which is suitable for the growth of the microorganisms involved in the bioleaching process, The chosen temperatures were optimum for the growth of the mesophilic (Thiobacillus ferrooxidans) and thermophilic (Sulfolobus) microorganisms. The experimental results at both temperatures were similar and confirmed that, during the anodic dissolution of chalcopyrite, a passive film is formed on the surface which restricts the oxidation reactions in the medium by diffusional control of the film, The different responses at the temperatures tested were due to the differing physical structure of the complex films of the electrochemically formed sulphides, polysulphides and elemental sulphur.
dc.format.extent14 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/0304-386X(96)00010-2
dc.identifier.issn0304-386X
dc.identifier.urihttps://doi.org/10.1016/0304-386X(96)00010-2
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79319
dc.identifier.wosidWOS:A1996VM89200026
dc.information.autorucQuímica;Figueroa M;S/I;48935
dc.issue.numero1-3
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final344
dc.pagina.inicio331
dc.publisherELSEVIER SCIENCE BV
dc.revistaHYDROMETALLURGY
dc.rightsregistro bibliográfico
dc.subjectOXIDATION
dc.subjectCOPPER
dc.titleElectrochemistry of chalcopyrite
dc.typeartículo
dc.volumen43
sipa.codpersvinculados48935
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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