Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 319, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2020.114159
Keywords
Methanol; Ionic liquids; Tetrahydrofuran; Azeotrope
Funding
- National Natural Science Foundation of China [21802128]
Ask authors/readers for more resources
The work studied the separation of imidazolium-based ionic liquids (ILs, 1-hexyl-3-methylimidazolium tetrafluoroborate [HMIM][BF4] and 1-hexyl-3-methylimidazolium trifluoromethylsulfonate [HMIM][OTF]) in the methanol + tetrahydrofuran azeotropic mixtures. The experimental vapour-liquid equilibrium (VLE) data demonstrated that both ILs could serve as nonvolatile entrainers to break the azeotrope of the methanol + tetrahydrofuran mixture. Calculated by the NRTL model, the azeotropic phenomenon of the methanol + tetrahydrofuran system was eliminated when the minimum molar fraction of [HMIM][BF4] and [HMIM][OTF] was 0.139 and 0.113, respectively. Then the effect was analysed in terms of separation ability and sigma-Profiles. As a result, [HMIM][OTF] was the suitable entrainer to separate methanol + tetrahydrofuran azeotrope. (C) 2020 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available