| 盐对水+丙酸+环乙醇三相体系在298.2，303.2和308.2 K下液液相平衡的影响 |
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| 引用本文： | B. Ghalami-Choobar,A. Ghanadzadeh,S. Kousarimehr. 盐对水+丙酸+环乙醇三相体系在298.2，303.2和308.2 K下液液相平衡的影响[J]. 中国化学工程学报, 2011, 19(4): 565-569. DOI: 10.1016/S1004-9541(11)60022-0 |
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| 作者姓名： | B. Ghalami-Choobar A. Ghanadzadeh S. Kousarimehr |
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| 作者单位： | Department of Chemistry, Faculty of Science, University of Guilan, P. O. Box:19141, Rasht, Iran |
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| 摘 要： | Effects of salt and temperature on the liquid phase equilibrium of the (water + propionic acid + cyclohexanol) system were investigated. The liquid-liquid equilibrium data in the presence of KCl for various salt ionic strength of 0.5, 1.0, 1.5, 2.0, and 2.5 mol•dm3 and in absence of the salt at T (298.2, 303.2, and 308.2) K were determined. The experimental results were correlated based on the Othmer-Tobias equation and Pitzer ion-interaction model. Thermodynamic properties such as distribution coefficients and activity coefficients of propionic acid in water + cyclohexanol were determined. In addition, the separation factor, S, of the chosen solvent was obtained for the investigated system.
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| 关 键 词： | 液液平衡 盐效应 环己醇 系统 酸水 丙酸 离子相互作用 热力学性质 |
| 收稿时间： | 2010-08-01 |
| 修稿时间： | 2011-4-27 |
Salt Effect on the Liquid-Liquid Equilibrium of (Water + Propionic Acid + Cyclohexanol) System at T=(298.2, 303.2, and 308.2) K |
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| Bahram Ghalami-Choobar,Ali Ghanadzadeh,Shahram Kousarimehr. Salt Effect on the Liquid-Liquid Equilibrium of (Water + Propionic Acid + Cyclohexanol) System at T=(298.2, 303.2, and 308.2) K[J]. Chinese Journal of Chemical Engineering, 2011, 19(4): 565-569. DOI: 10.1016/S1004-9541(11)60022-0 |
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| Authors: | Bahram Ghalami-Choobar Ali Ghanadzadeh Shahram Kousarimehr |
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| Affiliation: | Department of Chemistry, Faculty of Science, University of Guilan, P. O. Box:19141, Rasht, Iran |
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| Abstract: | Effects of salt and temperature on the liquid phase equilibrium of the (water + propionic acid + cyclohexanol) system were investigated. The liquid-liquid equilibrium data in the presence of KCl for various salt ionic strength of 0.5, 1.0, 1.5, 2.0, and 2.5 mol•dm3 and in absence of the salt at T (298.2, 303.2, and 308.2) K were determined. The experimental results were correlated based on the Othmer-Tobias equation and Pitzer ion-interaction model. Thermodynamic properties such as distribution coefficients and activity coefficients of propionic acid in water + cyclohexanol were determined. In addition, the separation factor, S, of the chosen solvent was obtained for the investigated system. |
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| Keywords: | liquid-liquid equilibrium salt effect propionic acid distribution coefficient |
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