盐效应制取无水乙醇的研究现状及发展前景

The Research Status and Prospects of Extracting Dehydrated Ethanol

无水乙醇广泛应用于制药、化工、能源等行业,需求量日益剧增。目前,利用盐效应制取无水乙醇的方法主要有溶盐精馏、加盐萃取精馏。文章对盐效应方法做了分析,对盐的选择和盐效应在分离工艺中的研究进展做了详细的阐述。

Dehydrated ethanol is now used in pharmaceutical, chemical, energy and other industries, it has the increasing demand. There are two main methods： distillation by salt effect and extractive distillation with salt for the preparation of ethanol. In the paper, salt effects on were presented and analyzed. Salt selection and recent progress of salt effect and their separation application in chemical engineering were reviewed in detail.