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

Separation of Ethyl Acetate and Ethanol by Room Temperature Ionic Liquids with the Tetrafluoroborate Anion

Hu, X.[Xuesheng], Li, Y.[Yingxia], Cui, D.[Dannan], Chen, B.[Bing]
J. Chem. Eng. Data 2008, 53, 2, 427-433
ABSTRACT
Liquid liquid equilibrium data are presented for mixtures of 1-ethyl-3-methylimidazolium tetrafluoroborate ([emim]BF4) or 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate ([C2OHmim]BF4) or 1-ethyl- 2,3-dimethylimidazolium tetrafluoroborate ([edmim]BF4) or 1-(2-hydroxyethyl)-2,3-dimethylimidazolium tetrafluoroborate ([C2OHdmim]BF4) + ethanol + ethyl acetate at 298.15 K. The distribution ratio and selectivity values, derived from the tie line data, show that [C2OHmim]BF4 has better extraction capacity than other studied ionic liquids and that a hydroxyl group on the cation and a CH3 group at the 2-position can obviously affect the interaction between the ionic liquid and ethanol. The experimental results show that [C2OHmim]BF4 is potentially a candidate to separate ethyl acetate and ethanol by liquid liquid extraction. The experimental tie lines were correlated with the NRTL equation.
Compounds
# Formula Name
1 C4H8O2 ethyl acetate
2 C2H6O ethanol
3 C6H11BF4N2 1-ethyl-3-methylimidazolium tetrafluoroborate
4 C7H13BF4N2 1-ethyl-2,3-dimethylimidazolium terafluoroborate
5 C6H11BF4N2O 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate
6 C7H13BF4N2O 1-(2-hydroxyethyl)-2,3-dimethylimidazolium 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 - 2 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:2
  • 24
  • POMD
  • 2
  • 1
  • 3
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 2; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 9
  • POMD
  • 2
  • 1
  • 3
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 3; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 24
  • POMD
  • 2
  • 1
  • 5
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 5 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 8
  • POMD
  • 2
  • 1
  • 5
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:2
  • 29
  • POMD
  • 2
  • 1
  • 5
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 5; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 29
  • POMD
  • 2
  • 1
  • 4
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 4; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 8
  • POMD
  • 2
  • 1
  • 4
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:2
  • 34
  • POMD
  • 2
  • 1
  • 4
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 4; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 34
  • POMD
  • 2
  • 1
  • 6
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:2
  • 30
  • POMD
  • 2
  • 1
  • 6
  • Mole fraction - 6 ; Liquid mixture 1
  • Mole fraction - 6 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 2; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 8
  • POMD
  • 2
  • 1
  • 6
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 6; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 30