Determination and Correlation of Liquid-Liquid Equilibrium Data for the Systems Toluene-n-Heptane-Sulpholane and Sulpholane-n-Heptane-Water

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Determination and Correlation of Liquid-Liquid Equilibrium Data for the Systems Toluene-n-Heptane-Sulpholane and Sulpholane-n-Heptane-Water

Liu Yifu,Xie Rongjing, Ge Jianyong and Wang Baojing (Zhejiang University) (Dalian Institute of Technology)

Online:1985-12-25 Published:1985-12-25

甲苯-正庚烷-环丁砜、环丁砜-正庚烷-水——三元体系液液平衡数据的测定与热力学关联

刘伊芙,谢荣锦,葛坚勇,王保璟

浙江大学 ,浙江大学 ,浙江大学 ,大连工学院

Abstract

Abstract: Binodal curves and conjugate the lines were determined for the toluene -n-heptane-sulpholane ternary system at 30℃ and 50℃, and for the sul-oholane-n-heptane-water ternary system at 50℃. From these curves andany of the physical properties of the saturated solutions, such as refractive index or density, the equilibrium liquid-liquid compositions of the two ternary systems were found. The UNIQUAC equation was used to correlate the liquid-liquid equilibrium data of the first ternary system, including the UNIQUAC parameters at 30℃ and 50℃, and the UNIFAC method was used to predict the liquid-liquid equilibrium data of both ternary systems. Agreement between calculated and experimental data is satisfactory.

摘要： 本文测定了甲苯-正庚烷-环丁砜三元体系在30℃和50℃下的液液分层曲线和结线数据,采用了以液液分层曲线和体系物性相结合的分析方法,获得了可靠的数据.本文还测定了环丁砜—正庚烷-水三元体系在50℃下的液液分层曲线,作出了结线.对前一休系的数据进行了热力学关联,求出30℃及50℃时UNIQUAC方程参数.对两个体系均用UNIFAC方法进行预测.计算所得结果相当满意.

Liu Yifu,Xie Rongjing, Ge Jianyong and Wang Baojing (Zhejiang University) (Dalian Institute of Technology). Determination and Correlation of Liquid-Liquid Equilibrium Data for the Systems Toluene-n-Heptane-Sulpholane and Sulpholane-n-Heptane-Water[J]. .

刘伊芙,谢荣锦,葛坚勇,王保璟. 甲苯-正庚烷-环丁砜、环丁砜-正庚烷-水——三元体系液液平衡数据的测定与热力学关联 [J]. CIESC Journal.