Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid equilibria of water + lactic acid + methyl isobutyl ketone

Afolabi, T. J.[Tinuade Jolaade], Alao, A. I.[Adeyinka Idowu]
Fluid Phase Equilib. 2014, 379, 19-25
ABSTRACT
Experimental liquid-liquid equilibria of the ternary system of water + lactic acid + methyl isobutyl ketone(MIBK) were studied at T = (298.15, 303.15 and 308.15) K under atmospheric conditions. Complete phase diagrams were obtained by determining solubility and tie-line data. The ternary system exhibits type-1behavior of LLE. The reliability of the experimental tie-line data was ascertained by using both Hand and Othmer-Tobias correlations. The UNIFAC group contribution method was used to predict the observedternary liquid liquid equilibrium data. Distribution coefficients and separation factors were evaluated toevaluate the extracting capability of the solvent. Separation factors were more than unity and the UNIFAC prediction was satisfactory.
Compounds
# Formula Name
1 H2O water
2 C3H6O3 2-hydroxypropanoic acid
3 C6H12O 4-methylpentan-2-one
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
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 1
  • POMD
  • 3
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 1
  • POMD
  • 2
  • 3
  • 1
  • Mass fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 57
  • POMD
  • 2
  • 3
  • 1
  • Mass fraction - 2 ; Liquid mixture 1
  • Mass fraction - 2 ; Liquid mixture 2
  • Mass fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mass fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • Index of refraction calibration data
  • Index of refraction calibration data
  • 18