ABSTRACT

Isobaric vapor-liquid equilibrium (VLE) data for the systems of methyl acetate + dimethyl sulfoxide (DMSO), methanol + DMSO and methyl acetate + methanol + DMSO were determined with a modified Othmer still at 101.3 kPa. And all experimental VLE data have passed the Herington and Van Ness thermodynamic consistency tests. The experimental binary VLE data were correlated by NRTL, Wilson and UNIQUAC models and the binary interaction parameters were obtained. And the VLE data predicted by the obtained parameters agree well with the experimental data. The binary azeotrope of methyl acetate and methanol is eliminated when the mole ratio of DMSO to the binary azeotrope is approximately 1.5:1. Therefore, DMSO is a promising extractive agent for the separation of the binary azeotrope of methanol and methyl acetate in extractive distillation.

Compounds

#	Formula	Name
1	C3H6O2	methyl ethanoate
2	CH4O	methanol
3	C2H6OS	dimethyl sulfoxide

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	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	17
POMD	3 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	17
POMD	2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	18
POMD	2 3	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	18
POMD	2 3 1	Mole fraction - 2 ; Liquid Mole fraction - 2 ; Gas Mole fraction - 1 ; Gas	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Chromatography Chromatography Chromatography	16

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Experimental isobaric vapor-liquid equilibrium for the binary and ternary systems with methanol, methyl acetate and dimethyl sulfoxide at 101.3 kPa

Zhang, X.[Xuemei], Liu, H.[Hongpeng], Liu, Y.[Yunxian], Jian, C.[Chungui], Wang, W.[Wei]

ABSTRACT