Experimental solid-liquid-liquid equilibrium data for the H2O + NaOH plus pyrrolidine ternary system. Application to the extraction of N-aminopyrrolidine

被引:5
作者
Frangieh, M. R. [1 ]
Bougrine, A. J. [1 ]
Tenu, R. [2 ]
Counioux, J. J. [2 ]
Dhenain, A. [1 ]
Goutaudier, C. [2 ]
机构
[1] Univ Lyon 1, UMR CNRS UCBL CNES HERAKLES SAFRAN 5278, Lab Hydrazines & Composes Energet Polyazotes, F-69622 Villeurbanne, France
[2] Univ Lyon 1, UMR CNRS 5615, Lab Multimat & Interfaces, F-69622 Villeurbanne, France
关键词
Solid-liquid-liquid equilibria; lsoplethic thermal analysis; Hydrazine; Ternary system; Miscibility gap; CHLORAMINE; DIAGRAMS; AMINES;
D O I
10.1016/j.fluid.2014.07.019
中图分类号
O414.1 [热力学];
学科分类号
摘要
Salting-out using sodium hydroxide is a simple and relevant method of pre-concentrating organic compounds (amine + hydrazine) in crude synthetic solutions during the preparation of hydrazine products. Liquid-liquid, solid-liquid and solid-liquid-liquid equilibria were determined for the pyrrolidine + water-'- sodium hydroxide ternary system at 283.15K, 293.15K and 323.15 K under atmospheric pressure. The reliability of our experimental tie-lines data was confirmed by using the Othmer-Tobias correlation. Distribution coefficients and separation parameters were evaluated for the immiscibility region. Using the data in these isothermal sections, we can deduce the demixing temperature that transfers most organic compounds to the upper phase and also the composition of the organic phase recovered after this first extraction step. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:132 / 139
页数:8
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