Mass transfer determining parameter in facilitated transport through di-(2-ethylhexyl) dithiophosphoric acid activated composite membranes

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.contributor	Universitat Politècnica de Catalunya. POLQUITEX - Materials Polimérics i Química Téxtil
dc.contributor.author	Macanás de Benito, Jorge
dc.contributor.author	Muñoz Tapia, Maria
dc.date	2005-04-04
dc.identifier.citation	Macanás, J.; Muñoz, M. Mass transfer determining parameter in facilitated transport through di-(2-ethylhexyl) dithiophosphoric acid activated composite membranes. "Analytica chimica acta", 04 Abril 2005, vol. 534, núm. 1, p. 101-108.
dc.identifier.citation	0003-2670
dc.identifier.citation	10.1016/j.aca.2004.11.024
dc.identifier.uri	http://hdl.handle.net/2117/24206
dc.language.iso	eng
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria química
dc.subject	Mass transfer
dc.subject	Metal ions
dc.subject	Membranes--analysis
dc.subject	Activated composite membranes
dc.subject	Facilitated transport
dc.subject	Di-(2-ethylhexyl)dithiophosphoric acid
dc.subject	Metal ions
dc.subject	Mass transfer
dc.subject	Transferència de massa
dc.subject	Materials compostos
dc.subject	Ions metàl·lics
dc.title	Mass transfer determining parameter in facilitated transport through di-(2-ethylhexyl) dithiophosphoric acid activated composite membranes
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	Activated composite membranes (ACMs) containing di-(2-ethylhexyl) dithiophosphoric acid (D2EHDTPA) as a carrier have been found to facilitate the transport and separation of several cations. This paper describes an approach to the chemical characterisation of the transport phenomena of Zn2+, Cd2+, Cu2+, Ni2+, Sn2+ and In3+ by an ACM. The selectivity of D2EHDTPA based ACM towards different metal ions is presented and discussed focusing in Zn2+ and Cd2+ transport and recovery. Selectivity demonstrates that zinc ions are removable from mixtures due to the different extraction strength of D2EHDTPA. Such selectivity is based on the differences of the dynamic behaviour of the metal ions transport. In addition, a correlation of the chemical behaviour of those ACM systems with the corresponding solvent extraction systems has been found.

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