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Liquid Phase Equilibria of the Water + Acetic Acid + Dimethyl Carbonate Ternary System at Several Temperatures

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Engineering Faculty, Chemical Engineering Department, Istanbul University, 34320, Avcilar/Istanbul, Turkey
DDBST GmbH, Marie-Curie-Str. 10, D-26129 Oldenburg, Germany
*E-mail: [email protected] (E.İ.). Tel.: +90-212-473 70 70. Fax: +90-212-473 71 80.
Cite this: J. Chem. Eng. Data 2014, 59, 11, 3353–3358
Publication Date (Web):October 15, 2014
https://doi.org/10.1021/je500332k
Copyright © 2014 American Chemical Society

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    Abstract

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    Liquid–liquid equilibria (LLE) of water + acetic acid + dimethyl carbonate were experimentally specified at (298.2, 308.2, and 318.2) K. Each diagram was obtained through specifying binodal curves and tie-lines. The reliability of the experimental tie-line data was calculated by the Othmer–Tobias correlation. The nonrandom two-liquid (NRTL) and unified quasichemical activity coefficient (UNIQUAC) models were used to obtain the binary interaction parameters of the experimental tie-line data. However, universal functional (UNIFAC) and modified UNIFAC methods were used as well to predict the phase equilibrium in the system specified from experimental data using the interaction parameters between CH3, OCOO, COOH, and H2O functional groups. Distribution coefficients and separation factors were assessed for the immiscibility region.

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    Cited By

    This article is cited by 8 publications.

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