Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Vapor-liquid equilibria of ternary systems with 1-ethyl-3-methylimidazolium ethyl sulfate using headspace gas chromatography

Matsuda, H.[Hiroyuki], Tochigi, K.[Katsumi], Liebert, V.[Vincent], Gmehling, J.[Jurgen]
Fluid Phase Equilib. 2011, 307, 2, 197-201
ABSTRACT
Vapor liquid equilibria (VLE) for two binary systems 1-propanol + water and methyl acetate + methanol, and the ternary mixtures with the ionic liquid 1-ethyl-3-methylimidazolium ethyl sulfate [EMIM]+[EtSO4]- as entrainer were measured by headspace gas chromatography. From the experimental VLE data, the influence of the ionic liquid on the separation factors was investigated. The experimental results for the ternary systems show that [EMIM]+[EtSO4]- has a great influence on the separation factors of the systems investigated. Furthermore, the experimental separation factors were compared with the predicted ones of other ionic liquids and conventional selective solvents using modified UNIFAC (Dortmund).
Compounds
# Formula Name
1 C3H8O propan-1-ol
2 CH4O methanol
3 C3H6O2 methyl ethanoate
4 C8H16N2O4S 1-ethyl-3-methylimidazolium ethyl sulfate
5 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
  • 1
  • 5
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Gas
  • Gas
  • Liquid
  • Chromatography
  • 12
  • POMD
  • 2
  • 3
  • Mole fraction - 3 ; Gas
  • Mole fraction - 3; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 14
  • POMD
  • 1
  • 5
  • 4
  • Mole fraction - 1 ; Gas
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 5; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 25
  • POMD
  • 2
  • 3
  • 4
  • Mole fraction - 3 ; Gas
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Mole fraction - 3; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 36