ABSTRACT

Tie-line data for ternary systems of (ethylene glycol + toluene + n-octane) at three temperatures (295.15, 301.15, and 307.15) K are reported. The compositions of liquid phases at equilibrium were determined and the results were correlated with the UNIQUAC and NRTL activity coefficient models. The partition coefficients and the selectivity factor of ethylene glycol are calculated and compared to suggest which ethylene glycol is more suitable for extracting of toluene from n-octane. The phase diagrams for the studied ternary mixtures including both the experimental and correlated tie lines are presented. From the phase diagrams and the selectivity factors, it is concluded that ethylene glycol may be used as a suitable solvent in extraction of toluene from n-octane mixtures.

Compounds

#	Formula	Name
1	C2H6O2	1,2-ethanediol
2	C7H8	toluene
3	C8H18	octane

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 2 3	Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 2 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mole fraction - 2; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	18

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

(Liquid + liquid) equilibria for ternary mixtures of (ethylene glycol + toluene + n-octane)

Mohsen-Nia, M., Doulabi, F. S. M., Manousiouthakis, V. I.

ABSTRACT