Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Salting-out effect on the (liquid + liquid) equilibrium for the ternary systems (water + phosphoric acid + dichloromethane or 1,2-dichloroethane)

Bahrpaima, K.[Kh.], Ebrahimi, M., Madani, H., Shekarriz, S.
J. Chem. Thermodyn. 2014, 71, 118-125
ABSTRACT
(Liquid + liquid) equilibrium (LLE) data for the ternary systems of the (water + phosphoric acid + dichloromethane) and (water + phosphoric acid + 1,2-dichloroethane) systems at T = 298.2 K have been studied. The effect of inorganic salts (sodium chloride and calcium chloride) on the LLE data for these ternary systems has also been investigated. The NRTL and GMDH correlations are used to fit the tie line data of these ternary liquid systems. The results for the binary interaction parameters for the NRTL model have also been reported. In order to selecting a suitable salt for better separation, the distribution coefficients and the separation factors by adding the same percent of the salts (10 wt%) have been calculated and compared. The tie line data of the ternary systems were correlated using the Othmer Tobias method.
Compounds
# Formula Name
1 H3O4P phosphoric acid
2 CH2Cl2 dichloromethane
3 C2H4Cl2 1,2-dichloroethane
4 H2O water
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
  • 1
  • 4
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 4; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 20
  • POMD
  • 2
  • 1
  • 4
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 4 ; Liquid mixture 2
  • Mass fraction - 1 ; Liquid mixture 2
  • Mass fraction - 4; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • Titration method
  • Titration method
  • 5
  • POMD
  • 3
  • 1
  • 4
  • Mass fraction - 1 ; Liquid mixture 1
  • Mass fraction - 4; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 20
  • POMD
  • 3
  • 1
  • 4
  • Mass fraction - 4 ; Liquid mixture 1
  • Mass fraction - 4 ; Liquid mixture 2
  • Mass fraction - 1 ; Liquid mixture 2
  • Mass fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • Titration method
  • Titration method
  • 5
  • POMD
  • 2
  • 4
  • Mass fraction - 4 ; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 2
  • POMD
  • 3
  • 4
  • Mass fraction - 4 ; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 2