Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

For the separation of 2,2,2-trifluoroethanol in water, two alcohols and two ketones were chosen as extractants for experiments at 101.3 kPa and 298.2 K. The liquid–liquid equilibrium data for water + 2,2,2-trifluoroethanol + (4-methyl-2-pentanol, methyl isobutyl ketone, methyl isopropyl ketone, and...

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Bibliographic Details
Published in:Journal of chemical and engineering data 2022-09, Vol.67 (9), p.2525-2531
Main Authors: Lin, Song, Pang, Yufan, Cao, Jingwei, Jiang, Yueyang, Yan, Houchun, Li, Qingsong
Format: Article
Language:English
Subjects:
Liquid-Liquid Equilibria and Vapor-Liquid-Liquid Equilibria
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Summary:For the separation of 2,2,2-trifluoroethanol in water, two alcohols and two ketones were chosen as extractants for experiments at 101.3 kPa and 298.2 K. The liquid–liquid equilibrium data for water + 2,2,2-trifluoroethanol + (4-methyl-2-pentanol, methyl isobutyl ketone, methyl isopropyl ketone, and benzyl alcohol) were measured under these conditions. The separation effects of the four solvents were assessed by the distribution coefficient (D) and the separation factor (S). Meantime, the interaction parameters were obtained by fitting the experimental data using NRTL and UNIQUAC models, and both values of AAD and rmsd were less than 0.43%. The GUI-MATLAB series of topological analysis tools were used to check the accuracy of the measured values with the binary interaction parameters.
ISSN:0021-9568
1520-5134
DOI:10.1021/acs.jced.2c00291