Adsorção de xantatos sobre pirita

Detalhes bibliográficos
Autor(a) principal: Penha,Fábio Garcia
Data de Publicação: 2001
Outros Autores: Spier,Vivian Cristina, Debacher,Nito Angelo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422001000500007
Resumo: This paper presents a study of adsorption of xanthate with alkyl chain of two (C2XK), four (C4XK) and eight (C8XK) atoms of carbon, on pyrite from Santa Catarina, Brazil. The results showed that pyrite surface changes from hydrophilic to hydrophobic when xanthate is adsorbed increasing the contact angle to 35º for C2XK, and to 90º for C4XK and C8XK. The rate of flotation of pyrite particles after adsorption increases with the increase of the number of carbon atoms in the alkyl chain in agreement with the results of contact angle measurements.
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spelling Adsorção de xantatos sobre piritapyriteadsorptioncontact angleThis paper presents a study of adsorption of xanthate with alkyl chain of two (C2XK), four (C4XK) and eight (C8XK) atoms of carbon, on pyrite from Santa Catarina, Brazil. The results showed that pyrite surface changes from hydrophilic to hydrophobic when xanthate is adsorbed increasing the contact angle to 35º for C2XK, and to 90º for C4XK and C8XK. The rate of flotation of pyrite particles after adsorption increases with the increase of the number of carbon atoms in the alkyl chain in agreement with the results of contact angle measurements.Sociedade Brasileira de Química2001-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422001000500007Química Nova v.24 n.5 2001reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422001000500007info:eu-repo/semantics/openAccessPenha,Fábio GarciaSpier,Vivian CristinaDebacher,Nito Angelopor2001-11-08T00:00:00Zoai:scielo:S0100-40422001000500007Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2001-11-08T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Adsorção de xantatos sobre pirita
title Adsorção de xantatos sobre pirita
spellingShingle Adsorção de xantatos sobre pirita
Penha,Fábio Garcia
pyrite
adsorption
contact angle
title_short Adsorção de xantatos sobre pirita
title_full Adsorção de xantatos sobre pirita
title_fullStr Adsorção de xantatos sobre pirita
title_full_unstemmed Adsorção de xantatos sobre pirita
title_sort Adsorção de xantatos sobre pirita
author Penha,Fábio Garcia
author_facet Penha,Fábio Garcia
Spier,Vivian Cristina
Debacher,Nito Angelo
author_role author
author2 Spier,Vivian Cristina
Debacher,Nito Angelo
author2_role author
author
dc.contributor.author.fl_str_mv Penha,Fábio Garcia
Spier,Vivian Cristina
Debacher,Nito Angelo
dc.subject.por.fl_str_mv pyrite
adsorption
contact angle
topic pyrite
adsorption
contact angle
description This paper presents a study of adsorption of xanthate with alkyl chain of two (C2XK), four (C4XK) and eight (C8XK) atoms of carbon, on pyrite from Santa Catarina, Brazil. The results showed that pyrite surface changes from hydrophilic to hydrophobic when xanthate is adsorbed increasing the contact angle to 35º for C2XK, and to 90º for C4XK and C8XK. The rate of flotation of pyrite particles after adsorption increases with the increase of the number of carbon atoms in the alkyl chain in agreement with the results of contact angle measurements.
publishDate 2001
dc.date.none.fl_str_mv 2001-10-01
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=S0100-40422001000500007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422001000500007
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422001000500007
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 Química Nova v.24 n.5 2001
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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