Phase diagrams for the system water/butyric acid/propylene carbonate at T = 293.2–313.2 K and p = 101.3 kPa

被引:0
作者
Sina Shekarsaraee
Hossein Taherpour Nahzomi
Elham Nasiri-Touli
机构
[1] University of Guilan,Department of Chemistry, Faculty of Science
[2] Payame Noor University,Department of Chemistry
来源
Russian Journal of Physical Chemistry A | 2017年 / 91卷
关键词
liquid–liquid equilibrium; butyric acid; UNIQUAC model; NRTL model;
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学科分类号
摘要
Phase diagrams for the system water/butyric acid/propylene carbonate were plotted at T = 293.2, 303.2, 313.2 K and p = 101.3 kPa. Acidimetric titration and refractive index methods were used to determine tie-line data. Solubility data revealed that the studied system exhibits type-1 behavior of liquid–liquid equilibrium. The experimental data were regressed and acceptably correlated using the UNIQUAC and NRTL models. As a result, propylene carbonate is a suitable separating agent for aqueous mixture of butyric acid.
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页码:2078 / 2084
页数:6
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