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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.

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