Modeling of salt solubilities in mixed solvents

Detalhes bibliográficos
Autor(a) principal: Chiavone Filho,O.
Data de Publicação: 2000
Outros Autores: Rasmussen,P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000200001
Resumo: A method to correlate and predict salt solubilities in mixed solvents using a UNIQUAC+Debye-Hückel model is developed. The UNIQUAC equation is applied in a form with temperature-dependent parameters. The Debye-Hückel model is extended to mixed solvents by properly evaluating the dielectric constants and the liquid densities of the solvent media. To normalize the activity coefficients, the symmetric convention is adopted. Thermochemical properties of the salt are used to estimate the solubility product. It is shown that the proposed procedure can describe with good accuracy a series of salt solubility measurements in aqueous organic solvent mixtures.
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spelling Modeling of salt solubilities in mixed solventstheorymethod of calculationsolid-liquid equilibriumelectrolytemixed solventA method to correlate and predict salt solubilities in mixed solvents using a UNIQUAC+Debye-Hückel model is developed. The UNIQUAC equation is applied in a form with temperature-dependent parameters. The Debye-Hückel model is extended to mixed solvents by properly evaluating the dielectric constants and the liquid densities of the solvent media. To normalize the activity coefficients, the symmetric convention is adopted. Thermochemical properties of the salt are used to estimate the solubility product. It is shown that the proposed procedure can describe with good accuracy a series of salt solubility measurements in aqueous organic solvent mixtures.Brazilian Society of Chemical Engineering2000-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000200001Brazilian Journal of Chemical Engineering v.17 n.2 2000reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322000000200001info:eu-repo/semantics/openAccessChiavone Filho,O.Rasmussen,P.eng2000-07-06T00:00:00Zoai:scielo:S0104-66322000000200001Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2000-07-06T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Modeling of salt solubilities in mixed solvents
title Modeling of salt solubilities in mixed solvents
spellingShingle Modeling of salt solubilities in mixed solvents
Chiavone Filho,O.
theory
method of calculation
solid-liquid equilibrium
electrolyte
mixed solvent
title_short Modeling of salt solubilities in mixed solvents
title_full Modeling of salt solubilities in mixed solvents
title_fullStr Modeling of salt solubilities in mixed solvents
title_full_unstemmed Modeling of salt solubilities in mixed solvents
title_sort Modeling of salt solubilities in mixed solvents
author Chiavone Filho,O.
author_facet Chiavone Filho,O.
Rasmussen,P.
author_role author
author2 Rasmussen,P.
author2_role author
dc.contributor.author.fl_str_mv Chiavone Filho,O.
Rasmussen,P.
dc.subject.por.fl_str_mv theory
method of calculation
solid-liquid equilibrium
electrolyte
mixed solvent
topic theory
method of calculation
solid-liquid equilibrium
electrolyte
mixed solvent
description A method to correlate and predict salt solubilities in mixed solvents using a UNIQUAC+Debye-Hückel model is developed. The UNIQUAC equation is applied in a form with temperature-dependent parameters. The Debye-Hückel model is extended to mixed solvents by properly evaluating the dielectric constants and the liquid densities of the solvent media. To normalize the activity coefficients, the symmetric convention is adopted. Thermochemical properties of the salt are used to estimate the solubility product. It is shown that the proposed procedure can describe with good accuracy a series of salt solubility measurements in aqueous organic solvent mixtures.
publishDate 2000
dc.date.none.fl_str_mv 2000-06-01
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=S0104-66322000000200001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000200001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322000000200001
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 Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.17 n.2 2000
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
_version_ 1754213170695634944

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