Liquid−Liquid Equilibrium of (Water + Pentane-2,4-dione + Ethyl Ethanoate) and (Water + Pentane-2,4-dione + Cyclohexane) at (298.15 and 313.15) K

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• 作者：Zhidong Yang ; Jiawen Zhu ; Bin Wu ; Kui Chen ; Xiaohe Ye
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2010
• 出版时间：December 9, 2010
• 年：2010
• 卷：55
• 期：12
• 页码：5745-5750
• 全文大小：136K
• 年卷期：v.55,no.12(December 9, 2010)
• ISSN：1520-5134

文摘

Liquid−liquid equilibrium (LLE) data of the solubility curves for ternary systems of water + pentane-2,4-dione + ethyl ethanoate and tie-line compositions for both of the ternary systems of water + pentane-2,4-dione + ethyl ethanoate and water + pentane-2,4-dione + cyclohexane were determined at (298.15 and 313.15) K and at a pressure of 101.3 kPa. Distribution coefficients were evaluated for the immiscible region. The reliability of the experimental tie-lines has been confirmed by using the Othmer−Tobias correlation. The experimental data were fitted using the nonrandom two-liquid (NRTL) and universal quasichemical activity coefficient (UNIQUAC) equations; parameters of these two models were regressed.