Liquid-liquid phase equilibrium and interaction exploration for separation of azeotrope (2,2,3,3-tetrafluoro-1-propanol + water) with two imidazolium-based ionic liquids
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Title: | Liquid-liquid phase equilibrium and interaction exploration for separation of azeotrope (2,2,3,3-tetrafluoro-1-propanol + water) with two imidazolium-based ionic liquids |
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Authors: | Zhang, Xiaowen | Wang, Zhaojie | Wang, Ke | Labarta, Juan A. | Gao, Jun | Xu, Dongmei | Wang, Yinglong |
Research Group/s: | Computer Optimization of Chemical Engineering Processes and Technologies (CONCEPT) |
Center, Department or Service: | Universidad de Alicante. Departamento de Ingeniería Química |
Keywords: | Extraction | Ionic liquids | Azeotrope | 2,2,3,3-tetrafluoro-1-propanol | Liquid-liquid equilibrium |
Knowledge Area: | Ingeniería Química |
Issue Date: | 15-Feb-2020 |
Publisher: | Elsevier |
Citation: | Journal of Molecular Liquids. 2020, 300: 112266. doi:10.1016/j.molliq.2019.112266 |
Abstract: | For separating azeotropic mixture 2,2,3,3-tetrafluoro-1-propanol (TFP) and water, two kinds of imidazolium-based ionic liquids 1-hexyl-3-methylimidazolium trifluoromethanesulfonate ([HMIM][OTf]) and 1-octyl-3-methylimidazolium trifluoromethanesulfonate ([OMIM][OTf]) were adopted to separate TFP and water. The liquid-liquid equilibrium behavior for the mixtures (water + TFP + [HMIM][OTf]) and (water + TFP + [OMIM][OTf]) were measured at temperature of 298.15 K and pressure of 101.3 kPa. The extraction ability of [HMIM][OTf] and [OMIM][OTf] was explored with partition ratio and selectivity. In the meantime, the hydrogen bond lengths, total electron density, interaction energies and deformation electron density were calculated to analyze the interactions between the [HMIM][OTf]/[OMIM][OTf] and (TFP/water). Also, the liquid-liquid equilibrium data was fitted by the NRTL model. |
Sponsor: | This work was supported by National Natural Science Foundation of China (Grant 21978155), Shandong Provincial Key Research & Development Project (2018GGX107001). |
URI: | http://hdl.handle.net/10045/100327 |
ISSN: | 0167-7322 (Print) | 1873-3166 (Online) |
DOI: | 10.1016/j.molliq.2019.112266 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2019 Elsevier B.V. |
Peer Review: | si |
Publisher version: | https://doi.org/10.1016/j.molliq.2019.112266 |
Appears in Collections: | INV - CONCEPT - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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2020_Zhang_etal_JMolLiquids_final.pdf | Versión final (acceso restringido) | 1,34 MB | Adobe PDF | Open Request a copy |
2020_Zhang_etal_JMolLiquids_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,49 MB | Adobe PDF | Open Preview |
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