Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Application of [EMpy][ESO4] ionic liquid as solvent for the liquid extraction of xylenes from hexane

Gonzalez, E. J.[Emilio J.], Gonzalez, B.[Begona], Calvar, N.[Noelia], Dominguez, A.[Angeles]
Fluid Phase Equilib. 2010, 295, 2, 249-254
ABSTRACT
Liquid-liquid equilibrium (LLE) data for the ternary systems {hexane + o-xylene + 1-ethyl-3-methylpyridinium ethylsulfate}, {hexane + p-xylene + 1-ethyl-3-methylpyridinium ethylsulfate}, and {hexane + m-xylene + 1-ethyl-3-methylpyridinium ethylsulfate} were determined at T = 298.15 K and atmospheric pressure. Selectivity, percent removal of aromatic, and solute distribution ratio, derived from the experimental equilibrium data, were used to determine if this ionic liquid can be used as a potential extracting solvent for the separation of xylenes from hexane. The consistency of tie-line data was ascertained by applying the Othmer-Tobias equation. The phase diagrams for the ternary systems are shown, and the tie-lines correlated with the NRTL model have been compared with the experimental data.
Compounds
# Formula Name
1 C6H14 hexane
2 C8H10 1,2-dimethylbenzene
3 C8H10 1,4-dimethylbenzene
4 C8H10 1,3-dimethylbenzene
5 C10H17NO4S 1-ethyl-3-methylpyridinium ethylsulfate
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
  • 5
  • 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
  • 2
  • 1
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Vibrating tube method
  • 13
  • POMD
  • 4
  • 1
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Vibrating tube method
  • 13
  • POMD
  • 3
  • 1
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Vibrating tube method
  • 13
  • POMD
  • 3
  • 1
  • 5
  • Mole fraction - 3 ; 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
  • Density calibration data
  • 8
  • POMD
  • 3
  • 1
  • 5
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 3; 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
  • 7
  • POMD
  • 3
  • 1
  • 5
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 3; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • ISOCHOR
  • 3
  • POMD
  • 3
  • 1
  • 5
  • Mass density, kg/m3 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Vibrating tube method
  • 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
  • Density calibration data
  • 8
  • POMD
  • 2
  • 1
  • 5
  • 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
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 8
  • POMD
  • 2
  • 1
  • 5
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • ISOCHOR
  • 3
  • POMD
  • 2
  • 1
  • 5
  • Mass density, kg/m3 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Vibrating tube method
  • 8
  • POMD
  • 4
  • 1
  • 5
  • Mole fraction - 4 ; 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
  • Density calibration data
  • 6
  • POMD
  • 4
  • 1
  • 5
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 4; 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
  • 8
  • POMD
  • 4
  • 1
  • 5
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • ISOCHOR
  • 3
  • POMD
  • 4
  • 1
  • 5
  • Mass density, kg/m3 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Mole fraction - 4; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Vibrating tube method
  • 6