2005•Journal of Jiangsu UniversityRequires access
Solvent recovery of batch extractive distillation for separation of ethanol-water
Yao Jun-feng
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Abstract
The process of the solvent recovery operation during batch extractive distillation for the separation of ethanol-water azeotropic mixture using glycol as the solvent was studied experimentally. The results showed that the slop cut of water-glycol lasted a very short time during which the temperature at the top of the column rose sharply. When the reflux ratio had the value of 1~2, the yield percentage of solvent recovery reached to the value of 94.96%~99.33%.