Liquid-Liquid Equilibria for Benzene plus Cyclohexane plus N,N-Dimethylformamide plus Potassium Thiocyanate

被引：18

作者：

Dong, Hongxing ^{[1
]}

Yang, Xiaoguang ^{[1
]}

Zhang, Jin ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2010年 / 55卷 / 09期

基金：

中国国家自然科学基金;

关键词：

BENZENE/CYCLOHEXANE MIXTURES; TERNARY; PERVAPORATION; MEMBRANES; SEPARATION;

D O I：

10.1021/je100036x

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experimental liquid-liquid equilibrium (LLE) data were measured for benzene + cyclohexane + N,N-dimethylformamide (DMF) + potassium thiocyanate (KSCN) at atmospheric pressure and 303.15 K. The experimental data was correlated using the Othmer-Tobias correlation. The selectivity coefficients of DMF + KSCN for benzene are 2 to 11 in this work. The results revealed that the selectivity coefficients increased with the decrease in concentration of benzene in the raffinate and increased with the increase of the mass fraction of KSCN in the DMF + KSCN mixture. Considering the high selectivity for benzene, DMF + KSCN may be used as a potential extracting solvent for the separation of benzene and cyclohexane.

引用

页码：3972 / 3975

页数：4

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