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

Separation of Hexane/Ethanol Mixtures. LLE of Ternary Systems (Ionic Liquid or Hyperbranched Polymer + Ethanol + Hexane) at T ) 298.15 K

Domanska, U.[Urszula], Zolek-Tryznowska, Z.[Zuzanna], Pobudkowska, A.[Aneta]
J. Chem. Eng. Data 2009, 54, 3, 972-976
ABSTRACT
Liquid-liquid phase equilibria (LLE) of hexyl(2-hydroxyethyl)dimethylammonium tetrafluoroborate (C6BF4) or hyperbranched polymer (a fatty-acid-modified dendritic polymer, Boltorn U3000) B-U3000 + ethanol + hexane, at T ) 298.15 K have been measured. The results are discussed in terms of the selectivity of ethanol and hexane separation. Sloping of the tie lines toward the ethanol vertex is observed for both mixtures (C6BF4 or B-U3000 + ethanol + hexane). The results indicate high selectivity for separation of ethanol and hexane with the ammonium ionic liquid in solvent extraction. The nonrandom two-liquid NRTL model was successfully used to correlate the experimental tie lines. The maximum mean square deviation in mole fraction was 0.01.
Compounds
# Formula Name
1 C2H6O ethanol
2 C6H14 hexane
3 C10H24BF4NO hexyl(2-hydroxyethyl)dimethylammonium tetrafluoroborate
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 1
  • 2
  • 3
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 9