Measurement and correlation of ternary (liquid–liquid) equilibrium data for n-heptane + p-xylene + (furfural or dimethyl sulfoxide) system at 303.15 K and 323.15 K

被引：0
作者：
Shi M. [1 ,2 ]
Zeng W. [2 ]
Song S. [2 ]
Zhou M. [2 ]
Wang W. [2 ]
机构：
[1] Hu'nan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds and Applications, Xiangnan University, Chenzhou, 423000, Hu'nan
[2] College of Chemistry & Biology and Environmental Engineering, Xiangnan University, Chenzhou, 423000, Hu'nan
来源：
Journal of Chemical Thermodynamics | 2020年 / 149卷
关键词：
Binary energy parameter; Liquid–liquid equilibrium; n-Heptane; NRTL; p-Xylene; UNIQUAC;
D O I：
10.1016/j.jct.2020.106175
中图分类号：
学科分类号：
摘要：
Liquid-liquid equilibrium (LLE) data for {n-heptane + p-xylene (PX) + furfural/dimethyl sulfoxide (DMSO)} ternary systems were measured at 303.15 K and 323.15 K and atmospheric pressure. Extraction performance of furfural and DMSO were evaluated using distribution coefficient (D) and selectivity (S) according to the measured tie-line data. And the results showed that DMSO had better extraction performance than furfural for separation of n-heptane and PX. Both UNIQUAC and NRTL models were used to correlate the experimental LLE data, and relevant interaction parameters were obtained. Consistency between the measured LLE data and the calculated by these two models was well evaluated by RMSD and maximum absolute deviation. Moreover, reliability of binary interaction parameters was confirmed by topological analysis related to the Gibbs tangent plane test. © 2020 Elsevier Ltd
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