Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Measurement and Correlation of Liquid-Liquid Equilibrium Data for Water + Acetic Acid + Methyl tert-Butyl Ether + NaCl

Zhang, H.[Hongxun], Wang, T.[Tiangui]
J. Chem. Eng. Data 2009, 54, 3, 945-949
ABSTRACT
Liquid-liquid equilibrium data of the quaternary system of water + acetic acid + methyl tert-butyl ether (MTBE) + NaCl at 298.15 K have been measured under atmospheric pressure. The liquid-phase splitting of the water + acetic acid + MTBE can be enhanced by the addition of salt NaCl. Selectivity of MTBE at different NaCl concentrations was calculated and compared. In addition, the experimental data were correlated with the NRTL and electrolyte-NRTL model. Also, parameters of these two models were regressed.
Compounds
# Formula Name
1 H2O water
2 C2H4O2 acetic acid
3 C5H12O 2-methoxy-2-methylpropane
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 2
  • 3
  • 1
  • Mass fraction - 2 ; Liquid mixture 2
  • Mass fraction - 2 ; Liquid mixture 1
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 1; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 9