ABSTRACT

Liquid liquid equilibrium (LLE) data for the ternary system water + benzyl alcohol + methylbenzene were measured at (303.2 to 343.2) K under atmospheric pressure. The Othmer Tobias and the Hand correlations were used to check the reliability of the experimental LLE data. The distribution coefficient and separation factor were used to investigate the ability of water to extract benzyl alcohol from methylbenzene. The results show that the distribution coefficient of benzyl alcohol increases with the increasing mass fraction of water in the aqueous phase. The experimental data were correlated by both the nonrandom two-liquid (NRTL) and the universal quasichemical (UNIQUAC) activity coefficient models. The relevant model interaction parameters were regressed by data fitting. The model calculated results show good agreement with the measured data. The obtained interaction parameters can be used in the calculation of LLE for the ternary system water + benzyl alcohol + methylbenzene as well as for the design and optimization of the related separation process.

Compounds

#	Formula	Name
1	C7H8	toluene
2	C7H8O	benzenemethanol
3	H2O	water

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	2 1 3	Mass fraction - 3 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Mass fraction - 2; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	CHROM:UFactor:2 CHROM:UFactor:2 CHROM:UFactor:2	60
POMD	1 3	Mass fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	CHROM:UFactor:2	5
POMD	1 3	Mass fraction - 3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	CHROM:UFactor:2	5
POMD	2 3	Mass fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	CHROM:UFactor:2	5
POMD	2 3	Mass fraction - 2 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	CHROM:UFactor:2	5

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

Liquid Liquid Equilibria for the Ternary System Water + Benzyl Alcohol + Methylbenzene at (303.2 to 343.2) K

Wang, H.[Hui], Wang, Q.[Qinbo], Xiong, Z.[Zhenhua], Chen, C.[Chuxiong]

ABSTRACT