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

Vapor Liquid Equilibrium and Liquid Liquid Equilibrium of Ethyl Acetate + Ethanol + 1-Ethyl-3-methylimidazolium Acetate

Li, R.[Rui], Cui, X.[Xianbao], Zhang, Y.[Ying], Feng, T.[Tianyang], Cai, J.[Jialin]
J. Chem. Eng. Data 2012, 57, 3, 911-917
ABSTRACT
The vapor liquid equilibrium (VLE) and liquid liquid equilibrium (LLE) of the ternary system of ethyl acetate + ethanol + 1-ethyl-3-methylimidazolium acetate ([EMIM][Ac]), together with the vapor liquid liquid equilibrium (VLLE) for the binary system of ethyl acetate + [EMIM][Ac], were measured. The experimental VLE, LLE, and VLLE data were correlated by the nonrandom two-liquid (NRTL) equation, and the calculated results agreed well with the experimental results. The VLE and VLLE results show that [EMIM][Ac] can enhance the relative volatility of ethyl acetate to ethanol, and the azeotrope of ethyl acetate + ethanol can be eliminated. The LLE data indicate that [EMIM][Ac] is a potential solvent for the separation of ethyl acetate + ethanol via liquid liquid extraction.
Compounds
# Formula Name
1 C8H14N2O2 1-ethyl-3-methylimidazolium acetate
2 C2H6O ethanol
3 C4H8O2 ethyl acetate
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
  • 3
  • 1
  • Triple point temperature, K ; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Gas
  • Ebulliometric method (Recirculating still)
  • 3
  • POMD
  • 2
  • 3
  • 1
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 1; Liquid
  • Solvent: Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 29
  • POMD
  • 2
  • 3
  • 1
  • Mole fraction - 3 ; Gas
  • Mole fraction - 1; Liquid
  • Solvent: Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 29
  • POMD
  • 2
  • 3
  • 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 24