ABSTRACT

Liquid liquid equilibrium (LLE) data for ternary systems formed by aromatic compounds (benzene, ethylbenzene), cycloalkanes (cyclohexane, methylcyclohexane, cyclooctane), and the ionic liquid 1-butyl-3-methylimidazolium methylsulfate, [BMim][MSO4], have been measured at T = 298.15 K and atmospheric pressure, with the aim of studying the influence of the structure of cycloalkanes and aromatic compounds on liquid liquid equilibrium. Values of solute distribution ratio and selectivity were evaluated to check the ability of [BMim][MSO4] as a solvent for extraction. The results obtained were compared to those previously reported using other ionic liquids and sulfolane. The nonrandom two-liquid (NRTL) and universal quasichemical (UNIQUAC) thermodynamic models were used to correlate the experimental LLE data for all of the studied ternary systems.

Compounds

#	Formula	Name
1	C6H12	cyclohexane
2	C7H14	methylcyclohexane
3	C8H16	cyclooctane
4	C6H6	benzene
5	C8H10	ethylbenzene
6	C9H18N2O4S	1-butyl-3-methylimidazolium methyl 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	4 1 6	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	Titration method	11
POMD	4 1 6	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	14
POMD	4 1 6	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 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Titration method Titration method Titration method	10
POMD	4 2 6	Mole fraction - 4 ; Liquid mixture 1	Mole fraction - 2; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	11
POMD	4 2 6	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	14
POMD	4 2 6	Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 2 ; 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	Titration method Titration method Titration method	9
POMD	5 1 6	Mole fraction - 5 ; 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	Titration method	7
POMD	5 1 6	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Mole fraction - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	10
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	Titration method Titration method Titration method	9
POMD	5 2 6	Mole fraction - 5 ; Liquid mixture 1	Mole fraction - 2; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	8
POMD	5 2 6	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid Mole fraction - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	5 2 6	Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 2 ; 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	Titration method Titration method Titration method	9
POMD	5 3 6	Mole fraction - 5 ; Liquid mixture 1	Mole fraction - 3; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	8
POMD	5 3 6	Mass density, kg/m3 ; Liquid	Mole fraction - 3; Liquid Mole fraction - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	5 3 6	Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 3 ; 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	Titration method Titration method Titration method	8

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

Liquid Liquid Extraction of Aromatic Compounds from Cycloalkanes Using 1-Butyl-3-methylimidazolium Methylsulfate Ionic Liquid

Dominguez, I.[Irene], Calvar, N.[Noelia], Gomez, E.[Elena], Dominguez, A.[Angeles]

ABSTRACT