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Liquid–Liquid Equilibria for the System Water + 4-Methylpentan-2-one + Acetic Acid at Several Temperatures

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Department of Applied Chemistry, Bu-Ali Sina University, Hamedan 65174, Iran
*E-mail: [email protected]. Fax: +98-811-8257407.
Cite this: J. Chem. Eng. Data 2012, 57, 9, 2553–2559
Publication Date (Web):July 18, 2012
https://doi.org/10.1021/je3006166
Copyright © 2012 American Chemical Society

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    Abstract

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    The effect of temperature on the liquid–liquid equilibrium (LLE) of the ternary system of {water (1) + acetic acid (2) + 4-methylpentan-2-one (3)}, a recommended system for liquid–liquid extraction studies, was investigated at (288.2, 313.2, and 333.2) K. The reliability of the experimental tie line data was examined with the Othmer–Tobias and the Hand correlations that represented an excellent agreement. The distribution coefficient of acetic acid between organic and aqueous phases increases significantly with temperature, more than 18 % with low solute concentrations, and its value exceeds 1. Meanwhile, a high separation factor within 3.27 to 43.50 was revealed to extract acetic acid from aqueous phase at different temperatures. Higher separations are relevant for low concentrations of acetic acid at 313.2 K. In addition, the binary molecular interaction parameters for the nonrandom two-liquid (NRTL) and the universal quasichemical (UNIQUAC) models were estimated from the experimental results. Results show that these models with their obtained parameters predict tie lines with root-mean square deviation values of 0.0052 and 0.0245, respectively.

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    Cited By

    This article is cited by 7 publications.

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    2. Mikael Männistö, Juha-Pekka Pokki, Hele Haapaniemi, and Ville Alopaeus . Quaternary, Ternary and Binary LLE Measurements for 2-Methoxy-2-methylbutane + Furfural + Acetic Acid + Water at Temperatures between 298 and 341 K. Journal of Chemical & Engineering Data 2016, 61 (11) , 3730-3739. https://doi.org/10.1021/acs.jced.6b00150
    3. Dong Liu, Libo Li, Liejin Luo, and Yun Chen . Liquid–Liquid Phase Equilibria for the Ternary Water + Acetic Acid + 3,3-Dimethyl-2-butanone System at (298.15, 313.15 and 323.15) K. Journal of Chemical & Engineering Data 2015, 60 (11) , 3187-3192. https://doi.org/10.1021/acs.jced.5b00370
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