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

Liquid-Liquid Equilibrium Diagrams of Ethanol + Water + (Ethyl Acetate or 1-Pentanol) at Several Temperatures

Resa, J. M.[Jose M.], Goenaga, J. M.[Jose M.], Iglesias, M.[Miguel], Gonzalez-Olmos, R.[Rafael], Pozuelo, D.[Daniel]
J. Chem. Eng. Data 2006, 51, 4, 1300-1305
ABSTRACT
There are a great amount of substances found in the must distillations and at very low concentrations (called congeners). Other than that, ethanol and water are the major compounds. These facts make it difficult to simulate and optimize this industrial process. To extend the scarce knowledge of mixing thermodynamics related to these compounds, this paper contains the results of a new experimental study of liquid-liquid equilibrium (LLE) at temperatures of (298.15, 308.15, and 318.15) K for the ternary mixtures ethanol + water + (ethyl acetate or 1-pentanol) under atmospheric conditions. Ethyl acetate and 1-pentanol are important natural and legal congeners in common alcoholic distillation. A comparative analysis was performed by application of different group contribution methods to predict experimental equilibria behavior of these mixtures. The experimental tie line data were correlated to test consistency with the Othmer-Tobias equation. Disposable literature was revised and commented upon.
Compounds
# Formula Name
1 C2H6O ethanol
2 H2O water
3 C4H8O2 ethyl acetate
4 C5H12O pentan-1-ol
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
  • 1
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 4
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 4
  • 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Density calibration data
  • 3
  • POMD
  • 4
  • 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Density calibration data
  • 3
  • POMD
  • 1
  • 3
  • 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 21
  • POMD
  • 1
  • 4
  • 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 18