ABSTRACT

The suitability of the ionic liquid 1-butyl-1-methylpyrrolidinium dicyanamide, [BMpyr][DCA], as extraction solvent of benzene from its mixtures with octane and decane has been analyzed. (Liquid + liquid) equilibrium (LLE) data for the quaternary system {octane (1) + decane (2) + benzene (3) + [BMpyr] [DCA] (4)} and for the ternary systems {octane (1) + benzene (2) + [BMpyr][DCA] (3)} and {decane (1) + benzene (2) + [BMpyr][DCA] (3)} were determined at T = 298.15 K and atmospheric pressure. Solute distribution ratios and selectivities were calculated from the experimental LLE data in order to evaluate the capability of [BMpyr][DCA] as extraction solvent. Finally, experimental results for the ternary and quaternary systems were correlated using the Non-Random Two-Liquid (NRTL) thermodynamic model.

Compounds

#	Formula	Name
1	C11H20N4	1-butyl-1-methylpyrrolidinium dicyanamide
2	C6H6	benzene
3	C8H18	octane
4	C10H22	decane

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2 3 1	Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 2 ; Liquid mixture 1	Mole fraction - 2; Liquid mixture 2	Pressure, kPa; Liquid mixture 2 Temperature, K; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Density calibration data Density calibration data Density calibration data	10
POMD	2 3 1	Mole fraction - 3 ; Liquid mixture 1	Mole fraction - 2; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	9
POMD	2 3 1	Mass density, kg/m3 ; Liquid	Mole fraction - 3; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	9
POMD	2 4 1	Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 4 ; Liquid mixture 1 Mole fraction - 2 ; Liquid mixture 1	Mole fraction - 2; Liquid mixture 2	Pressure, kPa; Liquid mixture 2 Temperature, K; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	10
POMD	3 1	Mole fraction - 3 ; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Titration method	1
POMD	3 1	Mass density, kg/m3 ; Liquid	Mole fraction - 3; Liquid Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	2 1	Mole fraction - 2 ; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Titration method	1
POMD	2 1	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Determination and correlation of (liquid + liquid) equilibria of ternary and quaternary systems with octane, decane, benzene and [BMpyr][DCA] at T = 298.15 K and atmospheric pressure

Requejo, P. F.[Patricia F.], Calvar, N.[Noelia], Dominguez, A.[Angeles], Gomez, E.[Elena]

ABSTRACT