ABSTRACT

Equilibrium studies on the extraction of thiophene from its mixtures with methylcyclohexane using two imidazolium ionic liquids have been carried out. LLE data were obtained for mixtures of 1-methyl-3-octylimidazolium bis- [trifluoromethylsulfonyl]imide or l-methyl-3-octylimidazolium tetrafluoroborate with thiophene and methylcyclohexane at atmospheric pressure and 298.15 K. Tie-line compositions were correlated using the NRTL equation, but considerable deviations from experimental data were found at high concentrations of thiophene. Distribution coefficients and selectivities were evaluated.

Compounds

#	Formula	Name
1	C7H14	methylcyclohexane
2	C4H4S	thiophene
3	C14H23F6N3O4S2	1-octyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
4	C12H23BF4N2	1-methyl-3-octylimidazolium 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	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	1 3	Mole fraction - 3 ; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	2 3	Mole fraction - 2 ; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	1 4	Mole fraction - 4 ; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	2 4	Mole fraction - 2 ; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	1 2 3	Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 2 ; Liquid mixture 2	Mole fraction - 3; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	10
POMD	1 2 4	Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 2 ; Liquid mixture 2	Mole fraction - 4; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	10

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

Measurement and Correlation of Liquid-Liquid Equilibria of Two Imidazolium Ionic Liquids with Thiophene and Methylcyclohexane

Alonso, L.[Lusia], Arce, A.[Alberto], Francisco, M.[Maria], Soto, A.[Ana]

ABSTRACT