Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Capacity of two 1-butyl-1-methylpyrrolidinium-based ionic liquidsfor the extraction of ethanol from its mixtures with heptane and hexane

Gonzalez, B.[Begona], Corderi, S.[Sandra]
Fluid Phase Equilib. 2013, 354, 89-94
ABSTRACT
In this work, the ionic liquids 1-butyl-1-methylpyrrolidinium dicyanamide, [BMpyr][N(CN)2], and 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate, [BMpyr][TfO], were studied as green solventsfor the separation of ethanol from heptane and hexane. Liquid liquid equilibrium (LLE) studies are impor-tant in the development of theoretical/semiempirical models for use in the design of extraction processes.Experimental liquid liquid equilibrium (LLE) data were measured for the ternary systems {heptane orhexane (1) + ethanol (2) + [BMpyr][N(CN)2] (3)} and {heptane or hexane (1) + ethanol (2) + [BMpyr][TfO](3)} at 298.15 K and atmospheric pressure. The effectiveness of the extraction of ethanol from the alkaneswas evaluated by solute distribution ratio and selectivity values. Finally, the experimental tie-line datawere accurately correlated with the non-random two liquid (NRTL) thermodynamic model.
Compounds
# Formula Name
1 C11H20N4 1-butyl-1-methylpyrrolidinium dicyanamide
2 C10H20F3NO3S 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate
3 C7H16 heptane
4 C6H14 hexane
5 C2H6O ethanol
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
  • 1
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 2
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 4
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 5
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 5
  • 3
  • 1
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 5 ; Liquid mixture 2
  • Mole fraction - 5; 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
  • 5
  • 4
  • 1
  • Mole fraction - 4 ; Liquid mixture 2
  • Mole fraction - 5 ; Liquid mixture 1
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 9
  • POMD
  • 5
  • 3
  • 2
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 5 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 9
  • POMD
  • 5
  • 4
  • 2
  • Mole fraction - 4 ; Liquid mixture 2
  • Mole fraction - 5 ; Liquid mixture 1
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 5; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 9