Phase equilibria of (water-carboxylic acid-diethyl maleate) ternary liquid systems at 298.15 K

Cehreli S., Gündoğdu T.

FLUID PHASE EQUILIBRIA, vol.303, no.2, pp.168-173, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 303 Issue: 2
  • Publication Date: 2011
  • Doi Number: 10.1016/j.fluid.2011.01.020
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.168-173
  • Istanbul University Affiliated: Yes


Liquid-liquid equilibrium (LLE) data for the ternary systems of (water-formic acid-diethyl maleate), (water-acetic acid-diethyl maleate), (water-propionic acid-diethyl maleate), (water-butyric acid-diethyl maleate), and (water-valeric acid-diethyl maleate) were investigated at 298.15 K and atmospheric pressure. Complete phase diagrams were obtained by determining solubility and the tie-line data. The tie-line data were compared with the results predicted by the UNIFAC and the modified UNIFAC (Dortmund) methods and correlated by means of UNIQUAC model. The reliability of the experimental tie-line data was confirmed by using the Othmer-Tobias correlation. Distribution coefficients and selectivity were evaluated for the immiscibility region. (c) 2011 Elsevier B.V. All rights reserved.