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Liquid–Liquid Equilibrium for the Ternary System Methanol + Acrylonitrile + Water

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School of Chemical Engineering and Technology, Tianjin University, Tianjin, P. R. China
Tianjin Univtech Co., Ltd., Tianjin, P. R. China
Cite this: J. Chem. Eng. Data 2012, 57, 1, 142–147
Publication Date (Web):November 17, 2011
https://doi.org/10.1021/je2009208
Copyright © 2011 American Chemical Society

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    Abstract

    The solubility and liquid–liquid equilibrium (LLE) data were measured for the ternary system methanol + acrylonitrile + water at 288.15 K, 298.15 K, and 313.15 K and atmospheric pressure. The quality of the experimental tie-line data has been checked by Hand and Othmer–Tobias correlations. The nonrandom two-liquid (NRTL) and universal quasichemical activity coefficient (UNIQUAC) models were applied to correlate the experimental data, and the interaction parameters for both models were regressed with an overall root-mean-square deviation (rmsd) less than 0.32 %. Selectivity values of water for methanol at the studied temperatures are within the range 1.5 < S < 26.5. The effect of temperature on the miscibility gap and the selectivity of water for methanol is minor.

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