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Titolo:
Kinetics of cadmium(II) transport through a liquid membrane containing tricapryl amine in xylene
Autore:
He, DS; Ma, M;
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:
SEPARATION SCIENCE AND TECHNOLOGY
fascicolo: 10, volume: 35, anno: 2000,
pagine: 1573 - 1585
SICI:
0149-6395(2000)35:10<1573:KOCTTA>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
CD(II); IONS;
Keywords:
liquid membrane; cadmium ions; tricapryl amine; transport kinetics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
8
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 e M. Ma, "Kinetics of cadmium(II) transport through a liquid membrane containing tricapryl amine in xylene", SEP SCI TEC, 35(10), 2000, pp. 1573-1585

Abstract

Coupled transport of Cd(II) ions through a supported liquid membrane containing tricapryl amine in xylene has been examined. The influences of stirring rate, carrier concentration, stripping agent, and H+ concentration in the feed solution were investigated. The transport of Cd(II) ions is coupled by cotransport of protons, The kinetics of Cd(II) transport could be analyzed in the formalism of two consecutive irreversible first-order reactions. The pseudofirst-order apparent rate constants of interfacial reactions in membrane transport were determined with bulk liquid membrane at various temperatures. The activation energy values are 14.7 kJ.mol(-1) for extraction and 12.4 kJ.mol(-1) for stripping.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 17/01/21 alle ore 15:41:50