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Titolo:
Effect of kinetic synergist on transport of copper(II) through a liquid membrane containing P-507 in kerosene
Autore:
He, DS; Ma, M; Wang, H; Zhou, PD;
Indirizzi:
Hunan Normal Univ, Dept Chem, Changsha 410081, Peoples R China Hunan Normal Univ Changsha Peoples R China 410081 10081, Peoples R China
Titolo Testata:
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE
fascicolo: 8, volume: 79, anno: 2001,
pagine: 1213 - 1219
SICI:
0008-4042(200108)79:8<1213:EOKSOT>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
IONS;
Keywords:
copper ions; kinetic synergist; liquid membrane;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: He, DS Hunan Normal Univ, Dept Chem, Changsha 410081, Peoples R China Hunan Normal Univ Changsha Peoples R China 410081 Peoples R China
Citazione:
D.S. He et al., "Effect of kinetic synergist on transport of copper(II) through a liquid membrane containing P-507 in kerosene", CAN J CHEM, 79(8), 2001, pp. 1213-1219

Abstract

A new kinetic synergism system for copper(II) transport through a bulk liquid membrane containing mono(2-ethyhexyl)-2-ethyhexyl phosphate and ManoxolOT (OT) was examined. The influence of stripping agent, anion, pH in feed phase, and carrier concentration were investigated. The kinetics of Cu(II) transport could be analyzed in the formalism of two consecutive irreversible first-order reactions, considering both extraction and stripping. The pseudo-first-order apparent rate constants of interfacial reactions in membrane transport are determined by altering the temperature. The activation energy values are 38.1 kJ mol(-1) for extraction and 32.8 kJ mol(-1) for stripping. The experiments demonstrated that Manoxol OT is a good kinetic synergist for Cu(II) transport through liquid membranes in this study. The kineticsynergism of OT for extraction of Cu2+ ions is analyzed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/01/20 alle ore 16:55:05