Liquid-Liquid Equilibrium in an Extraction System Based on Polyvinylpyrrolidone-3500 and Sodium Nitrate

被引：8
|
作者：
Zakhodyaeva, Yu A. [1 ,2 ]
Rudakov, D. G. [1 ]
Solov'ev, V. O. [2 ]
Voshkin, A. A. [1 ,2 ]
Timoshenko, A., V [1 ]
机构：
[1] MIREA Russian Technol Univ, Moscow 119454, Russia
[2] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
来源：
THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING | 2019年 / 53卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
aqueous two-phase systems; liquid-liquid equilibrium; UNIQUAC equation; polyvinylpyrrolidone; sodium nitrate; green chemistry; extraction; AQUEOUS 2-PHASE SYSTEM; POLYETHYLENE-GLYCOL; INTERPHASE DISTRIBUTION; MONOCARBOXYLIC ACIDS; WEAK ACIDS; SULFATE; WATER; DESULFURIZATION; SEPARATION; MIXTURES;
D O I：
10.1134/S0040579519020180
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Liquid-liquid phase equilibrium for a new extraction system based on polyvinylpyrrolidone-3500 and sodium nitrate at 298.15, 313.15, and 333.15 K has been studied. Binodal data and phase diagrams with liquid-liquid tie lines have been presented. Mathematical modeling of phase equilibrium in the given system has been performed. New parameters for the UNIQUAC equation have been selected. The UNIQUAC model can be successfully used to describe phase equilibrium in the system. The results of this study can be used in the development of new extraction processes for the recovery of organic compounds.
引用
收藏
页码：159 / 165
页数：7
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