Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Study of liquid-liquid equilibria at different temperatures of water + ethanol + 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl) imide ternary system

Chafer, A.[Amparo], Torre, J. d. l.[Javier de la], Lladosa, E.[Estela], Loras, S.[Sonia]
Fluid Phase Equilib. 2016, 426, 3-9
ABSTRACT
The experimental liquid-liquid equilibria (LLE) data of water + ethanol + 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([bmp][Tf2N]) system has been measured at different temperatures in this work. The LLE of the system has been measured between 283 and 333 K. The UNIQUAC and NRTL models were used to correlate the LLE data of with good results in both cases, however UNIQUAC gave a more accurate correlation. In order to apply UNIQUAC the volume and surface parameters for [bmp][Tf2N] (r, q) were determined. Finally, in order to obtain ethanol from the aqueous mixture, it was checked the solvent capability of ionic liquid and was compared with others from the literature.
Compounds
# Formula Name
1 C2H6O ethanol
2 H2O water
3 C11H20F6N2O4S2 1-butyl-1-methylpyrrolidinium bis[(trifluoromethyl)sulfonyl]imide
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
  • 2
  • 3
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 34
  • POMD
  • 2
  • 3
  • Mole fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • 4
  • POMD
  • 2
  • 3
  • Mole fraction - 2 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • 4