Liquid-liquid-solid equilibria for the quaternary system water plus ethanol plus 1-pentanol plus sodium chloride at 25°C

被引：7
|
作者：
Olaya, MM [1 ]
Botella, A [1 ]
Marcilla, A [1 ]
机构：
[1] Univ Alicante, Dept Chem Engn, E-03080 Alicante, Spain
来源：
FLUID PHASE EQUILIBRIA | 1999年 / 157卷 / 02期
关键词：
liquid-liquid-solid equilibria; data; salting-out; quaternary system; ethanol; 1-pentanol; sodium chloride;
D O I：
10.1016/S0378-3812(99)00042-4
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Salting-out effect can be used to improve the extraction of some solutes by modifying the solute distribution between two liquid phases. In this work we report the results obtained for the quaternary system water + ethanol + 1-pentanol + sodium chloride at 25 degrees C. All equilibrium regions (one liquid, two liquids, one liquid + one solid and two Liquids + one solid zones) have been systematically studied. Tie lines and tie-triangles data were measured, after separating the conjugated phases, determining the liquid components by Chromatography, and sodium chloride by gravimetrical methods and titration with AgNO3 depending on its concentration. Distribution and selectivity curves are represented to analyse the sodium chloride salt effect. Tie-Lines and tie-triangles data have been correlated using a modification of the Eisen-Joffe equation. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：197 / 211
页数：15
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