Salting-out extraction systems of ethanol and water induced by high-solubility inorganic electrolytes

被引：32

作者：

Xie, Shaoqu ^{[1
]}

Song, Wenli ^{[1
]}

Yi, Conghua ^{[1
]}

Qiu, Xueqing ^{[1
]}

机构：

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

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2017年 / 56卷

关键词：

Salting-out extraction; Ethanol; High-solubility inorganic electrolytes; Recovery; Solubility correlation; LIQUID-LIQUID; EQUILIBRIUM; PHOSPHATE; RECOVERY; SULFATE; ACETONE;

D O I：

10.1016/j.jiec.2017.07.006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The salting-out extraction systems of ethanol and water induced by the high-solubility inorganic electrolytes were investigated at 25 degrees C. More than 99.90% of ethanol was salted out into the organic phase. The salt content of the organic phase is only about 0.01 wt%, which is negligible for the application of the ethanol-salt salting-out extraction. More than 90% of water can be retained in the aqueous phase. It is concluded that the salting-out effects of four salting-out agents on the aqueous solution of ethanol are ordered in the sequence: K4P2O2 > K3PO4 > K2HPO4 > K2CO3. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：145 / 150

页数：6

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