Solubility behavior of 3, 3, 3-trifluoropropene in 1-hexyl-3-methyl-Imidazolium hexafluorophosphate and 1-octyl-3-methyl-imidazolium hexafluorophosphate

Jia, Xiucan; Luo, Yufeng; Wang, Xiaopo

doi:10.1016/j.molliq.2021.118347

Cited by 7 publications

(1 citation statement)

References 41 publications

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“…It is necessary to predict and acquire the vapor-liquid equilibria (VLE) data in synthesizing isopropyl acetate. In recent years, as a new type of green catalysts ionic liquids (ILs) attracted much attention due to their environmental friendliness, superior thermal and chemical durability, and simplicity for separation from liquid reaction mixtures compared with conventional catalysts such as concentrated sulfuric acid and heteropoly acid [3][4][5][6]. ILs have been used as catalysts for some esterification reactions by many researchers [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Vapor-Liquid and Chemical Equilibrium for Esterification of Acetic Acid + Isopropanol with [HSO3 -bmim][HSO4 ] at 101.33 kPa

Guo

Zhang

Huang

et al. 2023

Preprint

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Vapor-liquid equilibrium (VLE) data of binary systems (water + acetic acid, isopropanol + water, and acetic acid + isopropyl acetate), and ternary systems (water + acetic acid + 1-sulfobutyl-3-methylimidazolium hydrogen sulfate ([HSO3-bmim][HSO4]), isopropanol + water + [HSO3-bmim][HSO4], and acetic acid + isopropyl acetate +[HSO3-bmim][HSO4]) were determined at 101.33 kPa. The non-random two liquid (NRTL) model was fitted well with the experimental data. The σ-profiles of water, acetic acid, isopropanol, isopropyl acetate, [HSO3-bmim]+, and [HSO4]- were calculated using COSMO-RS model. Furthermore, the binding ability of [HSO3-bmim][HSO4] ionic liquid with water, acetic acid, isopropyl alcohol, and isopropyl acetate was analyzed by σ-profiles. The chemical and phase equilibrium (CPE) data of acetic acid + isopropanol, acetic acid + isopropanol + [HSO3-bmim][HSO4] systems were determined, and the chemical equilibrium constant Kr was calculated. These results provided basic thermodynamic data for [HSO3-bmim][HSO4] as the catalyst for the esterification system of acetic acid with isopropanol.

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