Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid equilibria for ternary system water + toluene+ benzaldehyde at (303.2 to 343.2) K

Wang, H.[Hui], Wang, Q.[Qinbo], Xiong, Z.[Zhenhua], Chen, C.[Chuxiong]
Fluid Phase Equilib. 2014, 383, 43-48
ABSTRACT
Liquid-liquid equilibrium (LLE) data for the ternary system of water + benzaldehyde + toluene have been determined at (303.2 to 343.2) K under atmospheric pressure. The Othmer-Tobias and the Hand correlations were used to check the reliability of the experimental data. The obtained LLE data were correlated by both the NRTL and UNIQUAC activity coefficient models. The relevant interaction parameters were extracted by the regression of the experimental data. The calculated values by these two models show good consistency with the measured data. The relative-mean-standard deviations obtained is 0.82% by the NRTL model and 0.12% by the UNIQUAC model. The obtained interaction parameters might be used in the calculation of LLE for the ternary system water + benzaldehyde + toluene as well as for the design and optimization of the related separation process .
Compounds
# Formula Name
1 C7H8 toluene
2 C7H6O benzaldehyde
3 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
  • 3
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 2 ; Liquid mixture 1
  • Mass fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 2; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 45