ABSTRACT

ABSTRACT: Isobaric vapor-liquid equilibrium at 101.3 kPa for the ternary system methanol + dimethyl carbonate + 1-butyl-3-methylimidazolium dibutylphosphate ([BMIM][DBP]) and their binary systems are determined using a modified Othmer still. By adding [BMIM][DBP] into the azeotropic system of methanol + dimethyl carbonate, the relative volatility of dimethyl carbonate is increased, which might be ascribed to the salting-out effect of [BMIM][DBP]. The relative volatility 21 a increases with increasing molar fraction of [BMIM][DBP]. The azeotropic point disappears when the molar fraction of [BMIM][DBP] is above 0.150. The equilibrium data is well fitted by the electrolyte nonrandom two-liquid model.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C3H6O3	dimethyl carbonate
3	C16H33N2O4P	1-butyl-3-methylimidazolium dibutyl phosphate

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	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	19
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	19
POMD	1 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	35
POMD	2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	32
POMD	1 2 3	Mole fraction - 1 ; Gas	Solvent: Mole fraction - 1; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	32
POMD	1 2 3	Boiling temperature at pressure P, K ; Liquid	Solvent: Mole fraction - 1; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	32

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

Isobaric Vapor Liquid Equilibrium for Methanol + Dimethyl Carbonate + 1-Butyl-3-methylimidazolium Dibutylphosphate

Chen, X.[Xiaochun], Cai, F.[Fufeng], Wu, X.[Xinying], Asumana, C.[Charles], Yu, G.[Guangren]

ABSTRACT