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

Measurement and Study on the Liquid Liquid Equilibrium of Ionic Liquids with Aliphatic Alcohols

Juan, B.[Bai], Pan, J.[Jiang], Shuqian, X.[Xia], Peisheng, M.[Ma]
J. Chem. Eng. Data 2011, 56, 11, 3963-3970
ABSTRACT
In this work, liquid liquid equilibria (LLE) for several binary systems of ionic liquids with aliphatic alcohols have been measured by the cloud point method from 280 K to the boiling point of the solvent. These binary systems include 1-hexyl-3-methylimidazolium tetrafluoroborate + 1-butanol/1-pentanol/1-hexanol/isobutanol and 1-octyl-3-methylimidazolium tetrafluoroborate + 1-butanol/1-pentanol/1-hexanol/1-octanol/isobutanol. The experimental data are analyzed, and some rules for the solubility of ILs are concluded, which can provide some instructions for the extraction and separation process. The equilibrium data are correlated by the nonrandom two-liquid (NRTL) model. The interaction parameters of the model for the systems are obtained. The minimum and maximum of the overall average deviation are 0.37 % and 2.67 %, respectively.
Compounds
# Formula Name
1 C10H19BF4N2 1-hexyl-3-methylimidazolium tetrafluoroborate
2 C12H23BF4N2 1-methyl-3-octylimidazolium tetrafluoroborate
3 C4H10O butan-1-ol
4 C4H10O 2-methyl-1-propanol
5 C5H12O pentan-1-ol
6 C6H14O hexan-1-ol
7 C8H18O octan-1-ol
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
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS
  • 19
  • POMD
  • 4
  • 1
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS
  • 18
  • POMD
  • 5
  • 1
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS
  • 27
  • POMD
  • 6
  • 1
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS:UFactor:2
  • 25
  • POMD
  • 3
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS
  • 15
  • POMD
  • 5
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS
  • 26
  • POMD
  • 6
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS
  • 30
  • POMD
  • 7
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS
  • 14
  • POMD
  • 4
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • VISOBS
  • 17