Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Application of the ionic liquid tributylmethylammonium bis(trifluoromethylsulfonyl)imide as solvent for the extraction of benzene from octane and decane at T = 298.15 K and atmospheric pressure

Requejo, P. F.[Patricia F.], Calvar, N.[Noelia], Dominguez, A.[Angeles], Gomez, E.[Elena]
Fluid Phase Equilib. 2016, 417, 137-143
ABSTRACT
In this work, the ionic liquid tributylmethylammonium bis(trifluoromethylsulfonyl)imide, [N4441][NTf2], has been evaluated as potential extraction solvent for the separation of benzene from its mixtures with octane and decane. The liquid-liquid equilibrium (LLE) data for the ternary systems {octane (1) + benzene (2) + [N4441][NTf2] (3)} and {decane (1) + benzene (2) + [N4441][NTf2] (3)} and for the quaternary system {octane (1) + decane (2) + benzene (3) + [N4441][NTf2] (4)} were determined at T = 298.15 K and atmospheric pressure. Solute distribution ratios and selectivities were calculated from the experimental LLE data and analyzed in order to evaluate the suitability of the ionic liquid in the studied separation. Finally, experimental results for the ternary and quaternary systems were correlated with the Non-Random Two-Liquid (NRTL) thermodynamic model.
Compounds
# Formula Name
1 C15H30F6N2O4S2 tributylmethylammonium bis((trifluoromethyl)sulfonyl)imide
2 C6H6 benzene
3 C8H18 octane
4 C10H22 decane
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 2
  • 3
  • 1
  • 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 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 9
  • POMD
  • 2
  • 4
  • 1
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 4 ; 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
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 9