Isobaric vapor-liquid equilibrium (VLE) data for {propan-2-ol (1) + water (2) + 1-butyl-3-methylimidazolium tetrafluoroborate(3)} where 3 is an ionic liquid ([BMIM]+[BF4]-) at atmospheric pressure (101.32 kPa) were measured with a modified Othmer still. The results showed that the ionic liquid studied can transfer the azeotropic point and eliminate the azeotropic phenomena when its concentration is up to x3 = 0.20. This means that [BMIM]+[BF4]- can be used as a promising entrainer in the application of extractive distillation. However, the comparison of the salting-out effect of [BMIM]+[BF4]- with that of 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM]+[BF4]-) was conducted. The measured ternary data were correlated using the NRTL equation.
Compounds
#
Formula
Name
1
C8H15BF4N2
1-butyl-3-methylimidazolium tetrafluoroborate
2
C3H8O
propan-2-ol
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.