Extração no ponto nuvem de compostos orgânicos homólogos e isômeros

Detalhes bibliográficos
Autor(a) principal: Duarte,Lindemberg J. N.
Data de Publicação: 2005
Outros Autores: Canselier,Jean Paul
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000300012
Resumo: In this work, the feasibility of employing micelle-mediated extraction for selective separation of homologous or isomeric organic compounds is demonstrated. Firstly, the main parameters controlling extraction performances, such as surfactant concentration and temperature were varied. A Scheffé-type experimental design was demonstrated as a novel and useful method to characterize the various experimental factors. At each point selected in the two-phase domain and for a given solute, extraction percentage (E%), concentration ratio, phase volume ratio, and equilibrium partition coefficient (K C) were determined. The values of E% and K C decrease in the following order: phenol > 1-phenylethanol ~ 2-phenylethanol > benzyl alcohol.
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spelling Extração no ponto nuvem de compostos orgânicos homólogos e isômerosnonionic surfactantcloud-point extractionequilibrium partition coefficientIn this work, the feasibility of employing micelle-mediated extraction for selective separation of homologous or isomeric organic compounds is demonstrated. Firstly, the main parameters controlling extraction performances, such as surfactant concentration and temperature were varied. A Scheffé-type experimental design was demonstrated as a novel and useful method to characterize the various experimental factors. At each point selected in the two-phase domain and for a given solute, extraction percentage (E%), concentration ratio, phase volume ratio, and equilibrium partition coefficient (K C) were determined. The values of E% and K C decrease in the following order: phenol > 1-phenylethanol ~ 2-phenylethanol > benzyl alcohol.Sociedade Brasileira de Química2005-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000300012Química Nova v.28 n.3 2005reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422005000300012info:eu-repo/semantics/openAccessDuarte,Lindemberg J. N.Canselier,Jean Paulpor2005-06-14T00:00:00Zoai:scielo:S0100-40422005000300012Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2005-06-14T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Extração no ponto nuvem de compostos orgânicos homólogos e isômeros
title Extração no ponto nuvem de compostos orgânicos homólogos e isômeros
spellingShingle Extração no ponto nuvem de compostos orgânicos homólogos e isômeros
Duarte,Lindemberg J. N.
nonionic surfactant
cloud-point extraction
equilibrium partition coefficient
title_short Extração no ponto nuvem de compostos orgânicos homólogos e isômeros
title_full Extração no ponto nuvem de compostos orgânicos homólogos e isômeros
title_fullStr Extração no ponto nuvem de compostos orgânicos homólogos e isômeros
title_full_unstemmed Extração no ponto nuvem de compostos orgânicos homólogos e isômeros
title_sort Extração no ponto nuvem de compostos orgânicos homólogos e isômeros
author Duarte,Lindemberg J. N.
author_facet Duarte,Lindemberg J. N.
Canselier,Jean Paul
author_role author
author2 Canselier,Jean Paul
author2_role author
dc.contributor.author.fl_str_mv Duarte,Lindemberg J. N.
Canselier,Jean Paul
dc.subject.por.fl_str_mv nonionic surfactant
cloud-point extraction
equilibrium partition coefficient
topic nonionic surfactant
cloud-point extraction
equilibrium partition coefficient
description In this work, the feasibility of employing micelle-mediated extraction for selective separation of homologous or isomeric organic compounds is demonstrated. Firstly, the main parameters controlling extraction performances, such as surfactant concentration and temperature were varied. A Scheffé-type experimental design was demonstrated as a novel and useful method to characterize the various experimental factors. At each point selected in the two-phase domain and for a given solute, extraction percentage (E%), concentration ratio, phase volume ratio, and equilibrium partition coefficient (K C) were determined. The values of E% and K C decrease in the following order: phenol > 1-phenylethanol ~ 2-phenylethanol > benzyl alcohol.
publishDate 2005
dc.date.none.fl_str_mv 2005-06-01
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=S0100-40422005000300012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000300012
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422005000300012
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.28 n.3 2005
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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