INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANE

the influence of a nonionic surfactant compound (sorbitan monooleate) on the coupled transport of Cu(II) ions in a hollow fiber-type solid supported liquid membrane extractor was studied. The acid compound 5-nonylsalicylaldoxime was used as carrier extractant. The experimental results indicate that...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	VALENZUELA,F., SALINAS,C., BASUALTO,C., SAPAG-HAGAR,J, TAPIA,C.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2003
Materias:	Liquid membranes copper LIX-860 NIC surfactant
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000100014
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-97072003000100014
record_format	dspace
spelling	oai:scielo:S0717-970720030001000142003-05-15INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANEVALENZUELA,F.SALINAS,C.BASUALTO,C.SAPAG-HAGAR,JTAPIA,C. Liquid membranes copper LIX-860 NIC surfactant the influence of a nonionic surfactant compound (sorbitan monooleate) on the coupled transport of Cu(II) ions in a hollow fiber-type solid supported liquid membrane extractor was studied. The acid compound 5-nonylsalicylaldoxime was used as carrier extractant. The experimental results indicate that the surfactant presents a remarkable interfacial activity, higher than those shown by the carrier extractant which would adsorb at the inteface too. From the experimental results it were calculated for the surfactant the interfacial area occupied by mol, the adsorption equilibrium constant and their critical micelle concentration. Results of extraction equilibrium experiments indicate that Span-80 itself did not extract copper and that Cu(II) extraction is enhanced as the acidity of feed aqueous solution decreases. It was found that the surfactant accelerates the permeability of metal in runs carried out using a higher concentration of Span-80 and when a pH value of 2.5 was adjusted for feed solution. In such condition transport rate of metal through liquid membrane would be controlled by the diffusion of chemical species in it. Furthermore, apparent permeability of copper is enhanced when the content of extractant at liquid membrane is augmented. A preliminary simplified mechanism of metal permeation through the liquid membrane is proposed. The mechanism is based on an heterogeneous interfacial reaction accelerated in the presence of the nonionic surfactantinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.48 n.1 20032003-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000100014en10.4067/S0717-97072003000100014
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Liquid membranes copper LIX-860 NIC surfactant
spellingShingle	Liquid membranes copper LIX-860 NIC surfactant VALENZUELA,F. SALINAS,C. BASUALTO,C. SAPAG-HAGAR,J TAPIA,C. INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANE
description	the influence of a nonionic surfactant compound (sorbitan monooleate) on the coupled transport of Cu(II) ions in a hollow fiber-type solid supported liquid membrane extractor was studied. The acid compound 5-nonylsalicylaldoxime was used as carrier extractant. The experimental results indicate that the surfactant presents a remarkable interfacial activity, higher than those shown by the carrier extractant which would adsorb at the inteface too. From the experimental results it were calculated for the surfactant the interfacial area occupied by mol, the adsorption equilibrium constant and their critical micelle concentration. Results of extraction equilibrium experiments indicate that Span-80 itself did not extract copper and that Cu(II) extraction is enhanced as the acidity of feed aqueous solution decreases. It was found that the surfactant accelerates the permeability of metal in runs carried out using a higher concentration of Span-80 and when a pH value of 2.5 was adjusted for feed solution. In such condition transport rate of metal through liquid membrane would be controlled by the diffusion of chemical species in it. Furthermore, apparent permeability of copper is enhanced when the content of extractant at liquid membrane is augmented. A preliminary simplified mechanism of metal permeation through the liquid membrane is proposed. The mechanism is based on an heterogeneous interfacial reaction accelerated in the presence of the nonionic surfactant
author	VALENZUELA,F. SALINAS,C. BASUALTO,C. SAPAG-HAGAR,J TAPIA,C.
author_facet	VALENZUELA,F. SALINAS,C. BASUALTO,C. SAPAG-HAGAR,J TAPIA,C.
author_sort	VALENZUELA,F.
title	INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANE
title_short	INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANE
title_full	INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANE
title_fullStr	INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANE
title_full_unstemmed	INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANE
title_sort	influence of nonionic surfactant compound on coupled transport of copper (ii) through a liquid membrane
publisher	Sociedad Chilena de Química
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000100014
work_keys_str_mv	AT valenzuelaf influenceofnonionicsurfactantcompoundoncoupledtransportofcopperiithroughaliquidmembrane AT salinasc influenceofnonionicsurfactantcompoundoncoupledtransportofcopperiithroughaliquidmembrane AT basualtoc influenceofnonionicsurfactantcompoundoncoupledtransportofcopperiithroughaliquidmembrane AT sapaghagarj influenceofnonionicsurfactantcompoundoncoupledtransportofcopperiithroughaliquidmembrane AT tapiac influenceofnonionicsurfactantcompoundoncoupledtransportofcopperiithroughaliquidmembrane
_version_	1718445323004674048

INFLUENCE OF NONIONIC SURFACTANT COMPOUND ON COUPLED TRANSPORT OF COPPER (II) THROUGH A LIQUID MEMBRANE

Ejemplares similares