Effect of carrier type on coupled transport kinetics of thiocyanate ions through liquid membranes. Kobya, M.; Demirbas, E.; Demircioglu, N.; Yildirim, Y.; and Yildiz, Y., S. DESALINATION, 160(3):253-262, 2004.
abstract   bibtex   
Coupled transport of thiocyanate ions through a liquid membrane containing quaternary ammonium chloride salts in chloroform was examined. The influences of the carrier type in the membrane phase on the coupled transport of thiocyanate ions were investigated. The kinetics of the coupled transport were analyzed in the formalism of two consecutive irreversible first-order reactions and the kinetic parameters (k(1d), k(2m), k(2a), R-m(max), t(max), j(d)(max), J(a)(max)) were also calculated. For the coupled transport of thiocyanate ions, quaternary ammonium chloride salts having different carbon atom numbers (C-n) used as carriers were found to increase thiocyanate ions transport efficiency with increasing carbon atom numbers. Tetradecyl trimethylammonium chloride (TDTMACl), hexadecyl trimethylammonium chloride (HDTMACl), and tetraoctyl ammonium chloride (TOACl) were found to be the most effective carrier types for transport of thiocyanate ions when C-n is greater than 16. The activation energies for maximum membrane entrance and exit fluxes were calculated as 32.45 kJ/mol and 34.75 kJ/mol, respectively. The values of the activation energy indicate that the process is controlled by species diffusion.
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 title = {Effect of carrier type on coupled transport kinetics of thiocyanate ions through liquid membranes},
 type = {article},
 year = {2004},
 identifiers = {[object Object]},
 pages = {253-262},
 volume = {160},
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 last_modified = {2016-04-28T08:46:14.000Z},
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 citation_key = {ISI:000188718800004},
 source_type = {article},
 abstract = {Coupled transport of thiocyanate ions through a liquid membrane
containing quaternary ammonium chloride salts in chloroform was
examined. The influences of the carrier type in the membrane phase on
the coupled transport of thiocyanate ions were investigated. The
kinetics of the coupled transport were analyzed in the formalism of two
consecutive irreversible first-order reactions and the kinetic
parameters (k(1d), k(2m), k(2a), R-m(max), t(max), j(d)(max),
J(a)(max)) were also calculated. For the coupled transport of
thiocyanate ions, quaternary ammonium chloride salts having different
carbon atom numbers (C-n) used as carriers were found to increase
thiocyanate ions transport efficiency with increasing carbon atom
numbers. Tetradecyl trimethylammonium chloride (TDTMACl), hexadecyl
trimethylammonium chloride (HDTMACl), and tetraoctyl ammonium chloride
(TOACl) were found to be the most effective carrier types for transport
of thiocyanate ions when C-n is greater than 16. The activation
energies for maximum membrane entrance and exit fluxes were calculated
as 32.45 kJ/mol and 34.75 kJ/mol, respectively. The values of the
activation energy indicate that the process is controlled by species
diffusion.},
 bibtype = {article},
 author = {Kobya, M and Demirbas, E and Demircioglu, N and Yildirim, Y and Yildiz, Y S},
 journal = {DESALINATION},
 number = {3}
}
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