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

Liquid-Liquid Equilibria for the Ternary Systems {Heptane + Toluene + N-Butylpyridinium Tetrafluoroborate or N-Hexylpyridinium Tetrafluoroborate} at T = 313.2 K

Garcia, J.[Julian], Garcia, S.[Silvia], Torrecilla, J. S.[.Jose S], Oliet, M.[Mercedes], Rodriguez, F.[Francisco]
J. Chem. Eng. Data 2010, 55, 8, 2862-2865
ABSTRACT
Liquid-liquid equilibrium (LLE) data for the ternary systems {heptane + toluene + N-butylpyridinium tetrafluoroborate ([bpy]BF4)} and {heptane + toluene + N-hexylpyridinium tetrafluoroborate ([hpy]BF4)} at 313.2 K and atmospheric pressure are reported. The degree of consistency of the experimental LLE data was ascertained by applying the Othmer-Tobias correlation. To check the feasibility of using the [bpy]BF4 and [hpy]BF4 ionic liquids as solvents in aromatic separation processes, their values of the distribution ratio and separation factor over the whole range of compositions were plotted and compared with those of sulfolane. In addition, the LLE data were successfully correlated with the thermodynamic NRTL model.
Compounds
# Formula Name
1 C7H16 heptane
2 C7H8 toluene
3 C9H14BF4N 1-butylpyridinium tetrafluoroborate
4 C11H18BF4N 1-hexylpyridinium 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
  • 2
  • 1
  • 3
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 2; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • NMR
  • NMR
  • 8
  • POMD
  • 2
  • 1
  • 4
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 2; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • NMR
  • NMR
  • 8