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