Isobaric vapor-liquid equilibrium (VLE) data of methanol + dimethyl carbonate, methanol + dimethyl carbonate + 1-Ethyl-3-Methylimidazolium Bromide ([EMIM][Br]) and methanol + dimethyl carbonate + 1-Butyl-3-Methylimidazolium Chloride ([BMIM][Cl]) were measured by a modified Othmer still at 101.3 kPa. The two investigated ionic liquids produced significant effects on the separation of the methanol and dimethyl carbonate azeotropic system. The relative volatility of dimethyl carbonate to methanol was enhanced with the addition of ionic liquid. The two ionic liquids could both eliminate the azeotropic point as their concentration increased to a certain value, but [BMIM][Cl] showed a greater separation effect on methanol and dimethyl carbonate azeotropic system than [EMIM][Br]. Furthermore, the measured data were well correlated with the nonrandom two-liquid (NRTL) model.
Compounds
#
Formula
Name
1
CH4O
methanol
2
C3H6O3
dimethyl carbonate
3
C6H11BrN2
1-ethyl-3-methylimidazolium bromide
4
C8H15ClN2
1-butyl-3-methylimidazolium chloride
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.