Electrochemical depression of galena aiming at selective sulfide flotation

Detalhes bibliográficos
Autor(a) principal: Dutra,Achilles Junqueira Bourdot
Data de Publicação: 1997
Outros Autores: Espínola,Aida, Sampaio,João Alves
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000200019
Resumo: In this article, the potential at which galena depression occurs is related to the formation of hydrophilic compounds on its surface. Reactions are proposed based on analyses by cyclic voltammetry, thermodynamic data, and X-ray photoelectron spectroscopy (XPS). Electrochemical variables, such as the redox potential, present good perspectives for selectivity in the flotation of galena and sphalerite, because in a given range of potentials, the galena surface becomes hydrophilic, as shown by measurements of the contact angle and floatability tests.
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spelling Electrochemical depression of galena aiming at selective sulfide flotationgalena electrochemistrycontact angledepressionsphaleriteIn this article, the potential at which galena depression occurs is related to the formation of hydrophilic compounds on its surface. Reactions are proposed based on analyses by cyclic voltammetry, thermodynamic data, and X-ray photoelectron spectroscopy (XPS). Electrochemical variables, such as the redox potential, present good perspectives for selectivity in the flotation of galena and sphalerite, because in a given range of potentials, the galena surface becomes hydrophilic, as shown by measurements of the contact angle and floatability tests.Sociedade Brasileira de Química1997-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000200019Journal of the Brazilian Chemical Society v.8 n.2 1997reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50531997000200019info:eu-repo/semantics/openAccessDutra,Achilles Junqueira BourdotEspínola,AidaSampaio,João Alveseng2012-10-30T00:00:00Zoai:scielo:S0103-50531997000200019Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2012-10-30T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrochemical depression of galena aiming at selective sulfide flotation
title Electrochemical depression of galena aiming at selective sulfide flotation
spellingShingle Electrochemical depression of galena aiming at selective sulfide flotation
Dutra,Achilles Junqueira Bourdot
galena electrochemistry
contact angle
depression
sphalerite
title_short Electrochemical depression of galena aiming at selective sulfide flotation
title_full Electrochemical depression of galena aiming at selective sulfide flotation
title_fullStr Electrochemical depression of galena aiming at selective sulfide flotation
title_full_unstemmed Electrochemical depression of galena aiming at selective sulfide flotation
title_sort Electrochemical depression of galena aiming at selective sulfide flotation
author Dutra,Achilles Junqueira Bourdot
author_facet Dutra,Achilles Junqueira Bourdot
Espínola,Aida
Sampaio,João Alves
author_role author
author2 Espínola,Aida
Sampaio,João Alves
author2_role author
author
dc.contributor.author.fl_str_mv Dutra,Achilles Junqueira Bourdot
Espínola,Aida
Sampaio,João Alves
dc.subject.por.fl_str_mv galena electrochemistry
contact angle
depression
sphalerite
topic galena electrochemistry
contact angle
depression
sphalerite
description In this article, the potential at which galena depression occurs is related to the formation of hydrophilic compounds on its surface. Reactions are proposed based on analyses by cyclic voltammetry, thermodynamic data, and X-ray photoelectron spectroscopy (XPS). Electrochemical variables, such as the redox potential, present good perspectives for selectivity in the flotation of galena and sphalerite, because in a given range of potentials, the galena surface becomes hydrophilic, as shown by measurements of the contact angle and floatability tests.
publishDate 1997
dc.date.none.fl_str_mv 1997-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000200019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000200019
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50531997000200019
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.8 n.2 1997
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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