ABSTRACT

In this paper, the feasibility of using 1-ethyl-3-methylimidazolium ethylsulfate ionic liquid, [EMim][ESO4], as solvent for the extraction of toluene from aliphatic compounds (hexane, heptane, octane, or nonane) was analyzed. (Liquid + liquid) equilibrium (LLE) data for the ternary systems {alkane (1) + toluene (2) + [EMim][ESO4] (3)} were measured at T = 298.15 K and atmospheric pressure. Selectivity and solute distribution ratio were calculated from the experimental LLE data, and the obtained values were compared to those previously reported using other ionic liquids and sulfolane. The degree of consistency of the experimental LLE data was ascertained using the Othmer-Tobias equation. Finally, the experimental LLE data were satisfactorily correlated with NRTL and UNIQUAC models.

Compounds

#	Formula	Name
1	C6H14	hexane
2	C7H16	heptane
3	C8H18	octane
4	C9H20	nonane
5	C7H8	toluene
6	C8H16N2O4S	1-ethyl-3-methylimidazolium 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	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	6	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5 1 6	Mass density, kg/m3 ; Liquid mixture 1	Mole fraction - 1; Liquid mixture 1 Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	3
POMD	5 1 6	Mass density, kg/m3 ; Liquid mixture 1	Mole fraction - 1; Liquid mixture 1 Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	9
POMD	5 1 6	Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 1 ; 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 2 6	Mass density, kg/m3 ; Liquid mixture 1	Mole fraction - 2; Liquid mixture 1 Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	9
POMD	5 2 6	Mass density, kg/m3 ; Liquid mixture 1	Mole fraction - 2; Liquid mixture 1 Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	3
POMD	5 2 6	Mole fraction - 5 ; Liquid mixture 1 Mole fraction - 2 ; Liquid mixture 2 Mole fraction - 5 ; Liquid mixture 2	Mole fraction - 2; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Density calibration data Density calibration data Density calibration data	8
POMD	5 3 6	Mass density, kg/m3 ; Liquid mixture 1	Mole fraction - 3; Liquid mixture 1 Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	8
POMD	5 3 6	Mass density, kg/m3 ; Liquid mixture 1	Mole fraction - 3; Liquid mixture 1 Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	3
POMD	5 3 6	Mole fraction - 5 ; Liquid mixture 1 Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 5 ; 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	Density calibration data Density calibration data Density calibration data	7
POMD	5 4 6	Mass density, kg/m3 ; Liquid mixture 1	Mole fraction - 4; Liquid mixture 1 Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	7
POMD	5 4 6	Mass density, kg/m3 ; Liquid mixture 1	Mole fraction - 4; Liquid mixture 1 Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Vibrating tube method	3
POMD	5 4 6	Mole fraction - 5 ; Liquid mixture 1 Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 5 ; 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	Density calibration data Density calibration data Density calibration data	7

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Extraction of toluene from aliphatic compounds using an ionic liquid as solvent: Influence of the alkane on the (liquid + liquid) equilibrium

Gonzalez, E. J.[Emilio J.], Calvar, N.[Noelia], Dominguez, I.[Irene], Dominguez, A.[Angeles]

ABSTRACT