Salting-out extraction systems of ethanol and water induced by high-solubility inorganic electrolytes
- Resource Type
- Article
- Authors
- Shaoqu Xie; Wenli Song; Conghua Yi; Xueqing Qiu
- Source
- Journal of Industrial and Engineering Chemistry, 56(0), pp.145-150 Dec, 2017
- Subject
- 화학공학
- Language
- English
- ISSN
- 1876-794X
1226-086X
The salting-out extraction systems of ethanol and water induced by the high-solubility inorganicelectrolytes were investigated at 25 C. More than 99.90% of ethanol was salted out into the organicphase. The salt content of the organic phase is only about 0.01 wt%, which is negligible for the applicationof the ethanol–salt salting-out extraction. More than 90% of water can be retained in the aqueous phase. Itis concluded that the salting-out effects of four salting-out agents on the aqueous solution of ethanol areordered in the sequence: K4P2O7> K3PO4> K2HPO4> K2CO3.