Liquid-liquid equilibrium for the ternary system of water, 2,2,2-trifluoroethanol and different solvents at 303.2 K under 101.3 kPa

Lin, Song; Yan, Houchun; Jiang, Yueyang; Guo, Hongyue; Zhao, Yicong; Han, Mai; Li, Qingsong

doi:10.1016/j.jct.2022.106783

Cited by 10 publications

(7 citation statements)

References 25 publications

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“…Distribution constant for the ternary mixtures (water + TFE + ethyl acetate/isopropyl acetate/isobutyl acetate) at temperature 308.15 K: ■, isobutyl acetate; ◆, ethyl acetate; ●, isopropyl acetate; □, MIBK from ref ; ○, n -propyl acetate from ref ; ▷, 2-octyl alcohol from ref .…”

Section: Resultsmentioning

confidence: 99%

“…Due to its strong electron adsorption and stability, TFE is easy to react with many organic compounds to form stable fine chemicals that can be applied in the synthesis of fluorinated pharmaceuticals, pesticides, and materials. , Almost all products derived from TFE have excellent properties. For example, for the synthesis of dye intermediates, TFE can improve the chemical stability and lightfastness of the products . Also, TFE has a promising and environmentally friendly application to replace Freon .…”

Section: Introductionmentioning

confidence: 99%

“…To date, there are only a few studies reported on the liquid–liquid equilibrium (LLE) of the system TFE + water with extractants. Lin et al measured the LLE data for the four mixtures {(TFE + water + 1-octanol), (TFE + water + 2-octyl alcohol), (TFE + water + 1-pentanol), and (TFE + water + 1-hexanol)} at 303.2 K. The results indicated that D and S for TFE increased with the increasing alkyl chain length of the alcoholic organic solvents. Han et al measured the LLE data for the four mixtures {(TFE + water + dichloromethane), (TFE + water + 2-ethyl-1-hexanol), (TFE + water + n -propyl acetate), and (TFE + water + isopentanol)} at 303.2 K. Among them, the ester n -propyl acetate has higher D and S for TFE than the alcohols and dichloromethane, which is more suitable as an extractant for separating TFE from its aqueous mixture.…”

Section: Introductionmentioning

confidence: 99%

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Liquid–Liquid Equilibrium for Ternary Systems 2,2,2-Trifluoroethanol + Water + (Ethyl Acetate/Isopropyl Acetate/Isobutyl Acetate) at 308.15 K under 101.3 kPa

et al. 2023

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2,2,2-Trifluoroethanol (C 2 H 3 F 3 O, TFE) is a useful fluorine-containing alcohol. During the synthesis and application of TFE, TFE, and water can form an azeotropic mixture. To recover TFE from the mixture of TFE and water by liquid−liquid extraction (LLET), in the current work, three organic solvents, isobutyl acetate (C 6 H 12 O 2 ), isopropyl acetate (C 5 H 10 O 2 ), and ethyl acetate (C 4 H 8 O 2 ), were chosen as the extractants. The liquid−liquid equilibrium (LLE) behavior for the three mixtures (water + TFE + ethyl acetate/isopropyl acetate/isobutyl acetate) was investigated at 101.3 kPa and 308.15 K. Selectivity (S) and distribution constant (D) were calculated as indexes to evaluate the extraction capacity of the three extractants. The results indicated that isobutyl acetate has better extraction ability in extracting TFE from its aqueous solution of TFE compared to the esters. The NRTL model was used to regress the determined tie-line data. The coherence of the fitted parameters of the NRTL model with the experimental data was checked by topological analysis.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Liquid–Liquid Equilibrium for Ternary Systems 2,2,2-Trifluoroethanol + Water + (Ethyl Acetate/Isopropyl Acetate/Isobutyl Acetate) at 308.15 K under 101.3 kPa

et al. 2023

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“…Experimental equipment and detailed methods are also described in previously published papers. − The experiment of water + TFE + {MIBC or MIBK or MIPK or benzyl alcohol} was carried out at 298.2 K. During the entire experimental measurement process, under the condition that precise control of the temperature fluctuation range is less than 0.1 K, the water, the extractant and trifluoroethanol mixture was added to the equilibrium kettle, thoroughly agitated for 4 h, and allowed to equilibrate for 8 h. The organic phase and the lower aqueous layer were sampled for chromatographic analysis.…”

Section: Experimental Sectionmentioning

confidence: 99%

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

et al. 2022

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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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“…The liquid−liquid extraction is widely utilized for its high efficiency, low energy consumption, and relative environmental protection. 23 The key to designing and developing a route for the recovery of 3-pentanone from aqueous solutions is the selection of extractants. There are few studies on the azeotropic behavior of 3-pentanone, so more explorations on the aqueous solutions containing 3-pentanone are required to obtain detailed information for subsequent research or industrialization.…”

Section: Introductionmentioning

confidence: 99%

Experimental Determination and Thermodynamic Modeling of Liquid–Liquid Equilibrium for the Ternary Mixture System: Water + 3-Pentanone + Different Solvents at 308.2 K under 101.3 kPa

Cao

Guo

2023

J. Chem. Eng. Data

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Ternary liquid–liquid phase equilibrium (LLE) data of water + 3-pentanone + extractants (methyl tert-butyl ether, 2-ethyl-1-hexanol, o-xylene, ethyl acetate) were measured to separate 3-pentanone of high purity from aqueous solutions at 308.2 K under 101.3 kPa. The ability to extract 3-pentanone from aqueous solutions was assessed by distribution coefficient (D) and separation factor (S). Hand and Bachman equations tested the reliability of the experimental data with linear coefficients (R 2) not less than 0.99. Meanwhile, UNIQUAC and NRTL thermodynamic models regressed experimentally measured data to get the optimal binary interaction parameters, and the root mean square deviation (RMSD) was not more than 0.4%. The GUI-MATLAB program verified the consistency of binary parameters obtained from the NRTL model well.

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Liquid-liquid equilibrium for the ternary system of water, 2,2,2-trifluoroethanol and different solvents at 303.2 K under 101.3 kPa

Cited by 10 publications

References 25 publications

Liquid–Liquid Equilibrium for Ternary Systems 2,2,2-Trifluoroethanol + Water + (Ethyl Acetate/Isopropyl Acetate/Isobutyl Acetate) at 308.15 K under 101.3 kPa

Liquid–Liquid Equilibrium for Ternary Systems 2,2,2-Trifluoroethanol + Water + (Ethyl Acetate/Isopropyl Acetate/Isobutyl Acetate) at 308.15 K under 101.3 kPa

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

Experimental Determination and Thermodynamic Modeling of Liquid–Liquid Equilibrium for the Ternary Mixture System: Water + 3-Pentanone + Different Solvents at 308.2 K under 101.3 kPa

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