Liquid–Liquid Equilibrium Measurement and Correlation for the Ternary Systems (Dimethyl Succinate + 1,4-Butanediol)/(Dimethyl Glutarate + 1,5-Pentanediol)/(Dimethyl Adipate + 1,6-Hexanediol) + Water at Different Temperatures,Journal of Chemical & Engineering Data

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Liquid–Liquid Equilibrium Measurement and Correlation for the Ternary Systems (Dimethyl Succinate + 1,4-Butanediol)/(Dimethyl Glutarate + 1,5-Pentanediol)/(Dimethyl Adipate + 1,6-Hexanediol) + Water at Different Temperatures
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-03-05 , DOI: 10.1021/acs.jced.9b01099
Xingchuan Yang ₁ , Genlei Wei ₁ , Xiangmeng Chen ₁ , Li Xu ₁ , Guoji Liu ₁

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Liquid–liquid equilibria (LLE) data for esters + diols + water ternary systems were measured at 101.3 kPa at four different temperatures, namely, 293.15, 303.15, 313.15, and 323.15 K. The Othmer–Tobias equation and the Hand equation were applied to examine the reliability of the LLE data in which both regression coefficients were higher than 0.98. The calculated distribution coefficients and separation factors were larger than 1, which means that it is feasible to extract the diols from the corresponding ester with water. In addition, NRTL and UNIQUAC models were applied to correlate the experimental data, and the binary interaction parameters were obtained. The calculated root-mean-square deviation values show that both models are in good agreement with the experimental data.

中文翻译：

三元体系（丁二酸二甲酯+ 1,4-丁二醇）/（戊二酸二甲酯+ 1,5-戊二醇）/（己二酸二甲酯+ 1,6-己二醇）+水在不同温度下的液-液相平衡测量和相关

酯+二醇+水三元体系的液-液平衡（LLE）数据在101.3 kPa的四个不同温度下（即293.15、303.15、313.15和323.15 K）进行了测量。将Othmer-Tobias方程和Hand方程应用于检查两个回归系数均高于0.98的LLE数据的可靠性。计算得出的分布系数和分离系数均大于1，这意味着用水从相应的酯中提取二醇是可行的。另外，应用NRTL模型和UNIQUAC模型对实验数据进行关联，得到二元相互作用参数。计算出的均方根偏差值表明这两个模型与实验数据非常吻合。

更新日期：2020-04-24

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