US EPA

1463694 

Journal Article 

Salting effect of NaCl and KCl on the liquid-liquid equilibria of water plus ethyl acetate plus ethanol system and interaction parameters estimation using the genetic algorithm 

Hasseine, A; Kabouche, A; Meniai, AH; Korichi, M 

2011 

Yes 

Desalination and Water Treatment
ISSN: 1944-3994
EISSN: 1944-3986 

European Desalination Society, Tosti 28 1-67100 L'Aquila Italy 

29 

1-3 

47-55 

English 

10.5004/dwt.2011.1621 

WOS:000291314400006 

http://www.tandfonline.com/doi/abs/10.5004/dwt.2011.1621
Exit
 

Salting effect of NaCl and KCl on the liquid-liquid
equilibria (LLE) of water-ethyl acetate-ethanol system was investigated experimentally at 293.15
K and 1 atm. The salt mass percentages considered were 5 and 10%. The results show that the two
electrolytes significantly affected the solubility of the solute in the organic phase, since its
distribution coefficient increased with rising amount of electrolyte, causing a salting-out
effect which was more pronounced for NaCl than for KCl and could be particularly useful to
eliminate solutropy. Interaction parameters for an extended version of the UNIQUAC model were
retrieved from the obtained experimental results by means of a combination of the Levenberg-
Marquardt and the genetic algorithms. 

Phase equilibria model; Salting effect; Activity coefficients models; Optimisation