Modelling of zinc (II) transport through a PC-88A supported liquid membrane

Autores
Tarditi, Ana Maria; Marchese, Jose; Campderrós, Mercedes Edith
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Zinc has been permeated through a flat-sheet supported liquid membrane, using 2-ethylhexylphosphoric acid mono-2-ethylhexyl ester (PC-88A) in kerosene. Liquid-liquid experiments were conducted as a function of aqueous pH (1-6) to establish optimum conditions for both extraction and stripping of the metal. A mass-transfer model was developed to predict the extent of Zn(II) permeation through the supported liquid membrane (SLM) under different experimental conditions. The effect of stirring rate, carrier concentration and temperature upon metal transport has been evaluated. The metal flux has been derived taking into account stagnant layer aqueous diffusion and liquid membrane diffusion as controlling factors. The overall transport evaluated from the proposed resistances model was in reasonable agreement with those obtained from experimental data. Under the studied experimental conditions the resistance of the intrinsic organic phase is masked by the aqueous stagnant layer resistance; therefore the Zn (II) transport through the liquid membrane is mainly controlled by the hydrodynamic of the system.
Fil: Tarditi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Marchese, Jose. Universidad Nacional de San Luis; Argentina
Fil: Campderrós, Mercedes Edith. Universidad Nacional de San Luis; Argentina
Materia
Mechanism
Pc-88a
Supported Liquid Membrane
Zinc Coupled Transport
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/65158
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Modelling of zinc (II) transport through a PC-88A supported liquid membraneTarditi, Ana MariaMarchese, JoseCampderrós, Mercedes EdithMechanismPc-88aSupported Liquid MembraneZinc Coupled Transporthttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Zinc has been permeated through a flat-sheet supported liquid membrane, using 2-ethylhexylphosphoric acid mono-2-ethylhexyl ester (PC-88A) in kerosene. Liquid-liquid experiments were conducted as a function of aqueous pH (1-6) to establish optimum conditions for both extraction and stripping of the metal. A mass-transfer model was developed to predict the extent of Zn(II) permeation through the supported liquid membrane (SLM) under different experimental conditions. The effect of stirring rate, carrier concentration and temperature upon metal transport has been evaluated. The metal flux has been derived taking into account stagnant layer aqueous diffusion and liquid membrane diffusion as controlling factors. The overall transport evaluated from the proposed resistances model was in reasonable agreement with those obtained from experimental data. Under the studied experimental conditions the resistance of the intrinsic organic phase is masked by the aqueous stagnant layer resistance; therefore the Zn (II) transport through the liquid membrane is mainly controlled by the hydrodynamic of the system.Fil: Tarditi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Marchese, Jose. Universidad Nacional de San Luis; ArgentinaFil: Campderrós, Mercedes Edith. Universidad Nacional de San Luis; ArgentinaElsevier Science2008-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/65158Tarditi, Ana Maria; Marchese, Jose; Campderrós, Mercedes Edith; Modelling of zinc (II) transport through a PC-88A supported liquid membrane; Elsevier Science; Desalination; 228; 1-3; 8-2008; 226-2360011-9164CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.desal.2007.10.011info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:08:20Zoai:ri.conicet.gov.ar:11336/65158instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:08:20.325CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Modelling of zinc (II) transport through a PC-88A supported liquid membrane
title Modelling of zinc (II) transport through a PC-88A supported liquid membrane
spellingShingle Modelling of zinc (II) transport through a PC-88A supported liquid membrane
Tarditi, Ana Maria
Mechanism
Pc-88a
Supported Liquid Membrane
Zinc Coupled Transport
title_short Modelling of zinc (II) transport through a PC-88A supported liquid membrane
title_full Modelling of zinc (II) transport through a PC-88A supported liquid membrane
title_fullStr Modelling of zinc (II) transport through a PC-88A supported liquid membrane
title_full_unstemmed Modelling of zinc (II) transport through a PC-88A supported liquid membrane
title_sort Modelling of zinc (II) transport through a PC-88A supported liquid membrane
dc.creator.none.fl_str_mv Tarditi, Ana Maria
Marchese, Jose
Campderrós, Mercedes Edith
author Tarditi, Ana Maria
author_facet Tarditi, Ana Maria
Marchese, Jose
Campderrós, Mercedes Edith
author_role author
author2 Marchese, Jose
Campderrós, Mercedes Edith
author2_role author
author
dc.subject.none.fl_str_mv Mechanism
Pc-88a
Supported Liquid Membrane
Zinc Coupled Transport
topic Mechanism
Pc-88a
Supported Liquid Membrane
Zinc Coupled Transport
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Zinc has been permeated through a flat-sheet supported liquid membrane, using 2-ethylhexylphosphoric acid mono-2-ethylhexyl ester (PC-88A) in kerosene. Liquid-liquid experiments were conducted as a function of aqueous pH (1-6) to establish optimum conditions for both extraction and stripping of the metal. A mass-transfer model was developed to predict the extent of Zn(II) permeation through the supported liquid membrane (SLM) under different experimental conditions. The effect of stirring rate, carrier concentration and temperature upon metal transport has been evaluated. The metal flux has been derived taking into account stagnant layer aqueous diffusion and liquid membrane diffusion as controlling factors. The overall transport evaluated from the proposed resistances model was in reasonable agreement with those obtained from experimental data. Under the studied experimental conditions the resistance of the intrinsic organic phase is masked by the aqueous stagnant layer resistance; therefore the Zn (II) transport through the liquid membrane is mainly controlled by the hydrodynamic of the system.
Fil: Tarditi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Marchese, Jose. Universidad Nacional de San Luis; Argentina
Fil: Campderrós, Mercedes Edith. Universidad Nacional de San Luis; Argentina
description Zinc has been permeated through a flat-sheet supported liquid membrane, using 2-ethylhexylphosphoric acid mono-2-ethylhexyl ester (PC-88A) in kerosene. Liquid-liquid experiments were conducted as a function of aqueous pH (1-6) to establish optimum conditions for both extraction and stripping of the metal. A mass-transfer model was developed to predict the extent of Zn(II) permeation through the supported liquid membrane (SLM) under different experimental conditions. The effect of stirring rate, carrier concentration and temperature upon metal transport has been evaluated. The metal flux has been derived taking into account stagnant layer aqueous diffusion and liquid membrane diffusion as controlling factors. The overall transport evaluated from the proposed resistances model was in reasonable agreement with those obtained from experimental data. Under the studied experimental conditions the resistance of the intrinsic organic phase is masked by the aqueous stagnant layer resistance; therefore the Zn (II) transport through the liquid membrane is mainly controlled by the hydrodynamic of the system.
publishDate 2008
dc.date.none.fl_str_mv 2008-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/65158
Tarditi, Ana Maria; Marchese, Jose; Campderrós, Mercedes Edith; Modelling of zinc (II) transport through a PC-88A supported liquid membrane; Elsevier Science; Desalination; 228; 1-3; 8-2008; 226-236
0011-9164
CONICET Digital
CONICET
url http://hdl.handle.net/11336/65158
identifier_str_mv Tarditi, Ana Maria; Marchese, Jose; Campderrós, Mercedes Edith; Modelling of zinc (II) transport through a PC-88A supported liquid membrane; Elsevier Science; Desalination; 228; 1-3; 8-2008; 226-236
0011-9164
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.desal.2007.10.011
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.928904

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