Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
KINETIC-ANALYSIS OF COUPLED TRANSPORT OF THIOCYANATE IONS THROUGH LIQUID MEMBRANES AT DIFFERENT TEMPERATURES
Autore:
KOBYA M; TOPCU N; DEMIRCIOGLU N;
Indirizzi:
ATATURK UNIV,FAC ENGN,DEPT ENVIRONM ENGN TR-25240 ERZURUM TURKEY
Titolo Testata:
Journal of membrane science
fascicolo: 1-2, volume: 130, anno: 1997,
pagine: 7 - 15
SICI:
0376-7388(1997)130:1-2<7:KOCTOT>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXTRACTION; SEPARATION; RECOVERY;
Keywords:
COUPLED TRANSPORT; THIOCYANATE ION TRANSPORT; TRANSPORT KINETICS; LIQUID MEMBRANES; WASTEWATERS; TEMPERATURE EFFECTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
M. Kobya et al., "KINETIC-ANALYSIS OF COUPLED TRANSPORT OF THIOCYANATE IONS THROUGH LIQUID MEMBRANES AT DIFFERENT TEMPERATURES", Journal of membrane science, 130(1-2), 1997, pp. 7-15

Abstract

Non-steady-state kinetics of coupled transport of thiocyanate ions through liquid membrane (trichloromethane), containing hexadecyl trimethyl ammonium chloride as a carrier, was examined at different temperatures. The kinetics of thiocyanate transport could be analyzed in the formalism of two, consecutive, irreversible first order reactions. The influence of temperature on the kinetic parameters (k(ld), k(2m), R-m(max), t(max), J(d)(max), J(a)(max)) have been also investigated. The membrane entrance rate, k(ld), and the membrane exit rates, k(2m) and k(2a), increase with temperature. For maximum membrane entrance and exitfluxes, J(d)(max) and J(a)(max), the activation energies were found from the slopes of the two linear relationships: 7.75 and 8.30 kcal/mol, respectively. The values of the found activation energy indicate that the process is controlled by species difussion.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 17/01/21 alle ore 17:46:17