Creating efficient novel aqueous two-phase systems: Salting-out effect and high solubility of salt

被引：24

作者：

Fu, Chuhan ^{[1
]}

Song, Wenli ^{[2
]}

Yi, Conghua ^{[2
]}

Xie, Shaoqu ^{[1
]}

机构：

[1] Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA

[2] South China Univ Technol, Sch Chem & Chem Engn, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R China

来源：

FLUID PHASE EQUILIBRIA | 2019年 / 490卷

关键词：

Salting-out effect; Aqueous two-phase system; 2-Propanol; Recovery; Highly soluble salts; LIQUID-LIQUID EQUILIBRIUM; PLUS CESIUM-CHLORIDE; PHASE-SEPARATION; SELECTIVE EXTRACTION; TERNARY-SYSTEMS; WATER; 2-PROPANOL; ETHANOL; ACETONE; RECOVERY;

D O I：

10.1016/j.fluid.2019.03.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In light of the advantages of liquid-liquid extraction, it is important to reduce the mutual solubility of extractant and solvent in the liquid feed. Highly efficient novel aqueous two-phase systems composed of 2-propanol and water were created by the introduction of highly soluble salts at high salt concentrations. The water + 2-propanol + K2HPO4/K4P2O7 systems are recommended for the extraction of the value-added chemicals since they lead to trace amounts of 2-propanol in the aqueous phase and salt in the organic phase. The e-NRTL-RK model was employed to correlate the aqueous two-phase systems (organic phase and aqueous phase) with high accuracy. With the roles of the salting-out effects and the solubility of the salt in mind, we are able to exploit the highly efficient novel aqueous two-phase systems composed of 2-propanol, water, and other highly soluble salts. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：77 / 85

页数：9

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