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DC Field | Value | Language |
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dc.contributor.author | Horta, Daniela G. | - |
dc.contributor.author | Bevilaqua, Denise | - |
dc.contributor.author | Acciaric, Heloisa A. | - |
dc.contributor.author | Garcia Jr., Oswaldo | - |
dc.contributor.author | Benedettie, Assis V. | - |
dc.date.accessioned | 2014-05-20T15:20:30Z | - |
dc.date.accessioned | 2016-10-25T17:53:38Z | - |
dc.date.available | 2014-05-20T15:20:30Z | - |
dc.date.available | 2016-10-25T17:53:38Z | - |
dc.date.issued | 2007-01-01 | - |
dc.identifier | http://dx.doi.org/10.4028/www.scientific.net/AMR.20-21.83 | - |
dc.identifier.citation | Biohydrometallury: From the Single Cell To the Environment. Stafa-zurich: Trans Tech Publications Ltd, v. 20-21, p. 83-86, 2007. | - |
dc.identifier.issn | 1022-6680 | - |
dc.identifier.uri | http://hdl.handle.net/11449/31779 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/31779 | - |
dc.description.abstract | The 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.extent | 83-86 | - |
dc.language.iso | eng | - |
dc.publisher | Trans Tech Publications Ltd | - |
dc.source | Web of Science | - |
dc.subject | chalcopyrite | pt |
dc.subject | Acidithiobacillus ferrooxidans | pt |
dc.subject | carbon paste electrodes | pt |
dc.subject | electrochemical noise analysis | pt |
dc.subject | bioleaching | pt |
dc.title | Electrochemical noise analysis of chalcopyrite carbon paste electrodes by Acidithiobacillus ferrooxidans | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil | - |
dc.description.affiliationUnesp | UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil | - |
dc.identifier.doi | 10.4028/www.scientific.net/AMR.20-21.83 | - |
dc.identifier.wos | WOS:000250578900018 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Biohydrometallury: From the Single Cell To the Environment | - |
dc.identifier.scopus | 2-s2.0-72449173248 | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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