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

Liquid-Liquid Equilibria of the Ternary Systems of Alkane + Aromatic + 1-Ethylpyridinium Ethylsulfate Ionic Liquid at T = (283.15 and 298.15) K

Gomez, E.[Elena], Dominguez, I.[Irene], Gonzalez, B.[Begona], Dominguez, A.[Angeles]
J. Chem. Eng. Data 2010, 55, 11, 5169-5175
ABSTRACT
In this work, the ionic liquid [EPy][EtSO4] was tested as a solvent for the separation of benzene from alkanes. The liquid-liquid equilibrium (LLE) data for the ternary mixtures of octane (1) or nonane (1) + benzene (2) + 1-ethylpyridinium ethylsulfate ([EPy][EtSO4]) (3) at T = (283.15 and 298.15) K and atmospheric pressure were experimentally determined. The cloud-point method was used to determine the solubility curve, and the tie-line compositions were obtained by density measurements. The effectiveness of the extraction of benzene from an alkane was evaluated by means of the calculation of the solute distribution ratio and selectivity values. The consistency of tie-line data was ascertained by applying the Othmer-Tobias and Hand equations. A correlation of the experimental tie lines was conducted through the use of the nonrandom two-liquid (NRTL) equation, which provides a good correlation of the experimental data. The results show that [EPy][EtSO4] can be used as an alternative solvent in liquid extraction processes for the removal of benzene from its mixtures with alkanes.
Compounds
# Formula Name
1 C9H20 nonane
2 C8H18 octane
3 C6H6 benzene
4 C9H15NO4S 1-ethylpyridinium ethyl sulfate
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
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 1
  • 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
  • 2
  • 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
  • 3
  • 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
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 3
  • 2
  • 4
  • Mass density, kg/m3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Vibrating tube method
  • 17
  • POMD
  • 3
  • 2
  • 4
  • Mole fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 17
  • POMD
  • 3
  • 2
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 6
  • POMD
  • 3
  • 2
  • 4
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 18
  • POMD
  • 3
  • 1
  • 4
  • Mass density, kg/m3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Vibrating tube method
  • 14
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 14
  • POMD
  • 3
  • 1
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 6
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Density calibration data
  • Density calibration data
  • Density calibration data
  • 17