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dc.contributor.authorHorta, Daniela G.-
dc.contributor.authorBevilaqua, Denise-
dc.contributor.authorAcciaric, Heloisa A.-
dc.contributor.authorGarcia Jr., Oswaldo-
dc.contributor.authorBenedettie, Assis V.-
dc.date.accessioned2014-05-20T15:20:30Z-
dc.date.accessioned2016-10-25T17:53:38Z-
dc.date.available2014-05-20T15:20:30Z-
dc.date.available2016-10-25T17:53:38Z-
dc.date.issued2007-01-01-
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/AMR.20-21.83-
dc.identifier.citationBiohydrometallury: From the Single Cell To the Environment. Stafa-zurich: Trans Tech Publications Ltd, v. 20-21, p. 83-86, 2007.-
dc.identifier.issn1022-6680-
dc.identifier.urihttp://hdl.handle.net/11449/31779-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/31779-
dc.description.abstractThe electrochemical response of chalcopyrite was studied using electrochemical noise analysis (ENA). The assay was carried out under constant aeration using 30 mL in two electrochemical cells containing iron-free mineral salts solution. These cells were initially monitored for 56 hours, After 72 hours, 7.25x 10(10) cells mL(-1) of A, ferrooxidans strain LR were added in both cells and monitored until 128 h. Subsequent to this period, 0.927 mmol L-1 of silver ions and 400 mmol L-1 of chloride ions were added each one separately. Both conditions were monitored until 168 hours. According to results obtained, it was observed that Cl- ions addition induced an accelerated corrosion process. However, there is a tendency of the system to reach the stationary state due to repassivation of the electrodic surface. In the other side, the Ag+ addition contributed for the maintenance of the oxidant atmosphere, in spite of controversial effect caused by considerable variations in the R-n values, resulting in a instability in the chalcopyrite reactivity.en
dc.format.extent83-86-
dc.language.isoeng-
dc.publisherTrans Tech Publications Ltd-
dc.sourceWeb of Science-
dc.subjectchalcopyritept
dc.subjectAcidithiobacillus ferrooxidanspt
dc.subjectcarbon paste electrodespt
dc.subjectelectrochemical noise analysispt
dc.subjectbioleachingpt
dc.titleElectrochemical noise analysis of chalcopyrite carbon paste electrodes by Acidithiobacillus ferrooxidansen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil-
dc.description.affiliationUnespUNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil-
dc.identifier.doi10.4028/www.scientific.net/AMR.20-21.83-
dc.identifier.wosWOS:000250578900018-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofBiohydrometallury: From the Single Cell To the Environment-
dc.identifier.scopus2-s2.0-72449173248-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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