ABSTRACT

Liquid-liquid equilibrium (LLE) data for the ternary systems {cyclohexane + benzene + 1-ethyl-3-methylpyridinium ethylsulfate}, {cyclohexane + toluene + 1-ethyl-3-methylpyridinium ethylsulfate}, and {cyclohexane + ethylbenzene + 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 equilibrium data, were used to determine if this ionic liquid can be used as a potential solvent for the separation of aromatic compounds from cyclohexane. The phase diagrams for the ternary systems are shown, and the tie-lines correlated with NRTL model have been compared with the experimental data.

Compounds

#	Formula	Name
1	C6H12	cyclohexane
2	C6H6	benzene
3	C7H8	toluene
4	C8H10	ethylbenzene
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 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	12
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	9
POMD	2 1 5	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	12
POMD	3 1 5	Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 2	Mole fraction - 1; 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	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	12
POMD	3 1 5	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Mole fraction - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	12
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	9
POMD	4 1 5	Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 4 ; Liquid mixture 2	Mole fraction - 4; 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	4 1 5	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	9

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid equilibria for ternary systems of {cyclohexane + aromatic compounds + 1-ethyl-3-methylpyridinium ethylsulfate}

Gonzalez, E. J.[Emilio J.], Dominguez, I.[Irene], Gonzalez, B.[Begona], Canosa, J.[Jose]

ABSTRACT