ABSTRACT

Liquid-liquid equilibrium (LLE) data of ternary mixtures containing n-hexane, benzene and acetonitrile were measured at T = (298.15, 308.15 and 318.15) K under atmospheric pressure, respectively. The reliability of the experimental data was checked by Othmer-Tobias, Bachman and Hand correlations. Both the NRTL and UNIQUAC models were used to correlate the LLE data and the binary interaction parameters were obtained valid for the range of temperature studied. The two models correlated the LLE data well, and the NRTL model gave slightly better predicted results than UNIQUAC. The measured data can be used to design and optimize the separation process of benzene + acetonitrile system by azeotropic distillation method with n-hexane as entrainer.

Compounds

#	Formula	Name
1	C6H14	hexane
2	C6H6	benzene
3	C2H3N	acetonitrile

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	1	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	2	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	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2 3 1	Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 2 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mole fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	24

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid equilibrium data for ternary mixtures composed of n-hexane, benzene and acetonitrile at (298.15, 308.15, and 318.15) K

Yang, S.[Shengkai], Wang, Y.[Yujie], Qi, X.[Xinhua], Wang, J.[Jiuxia]

ABSTRACT