利用新型萃取剂制取无水乙醇的研究  

Study on the Preparation of Anhydrous Ethanol Using New Type Extraction Agent

作　　者：苏义意 吴淑晶[1] 沙洲[1] 

机构地区：[1]上海工程技术大学化学化工学院,上海201620

出　　处：《河南化工》2016年第3期23-25,共3页Henan Chemical Industry

基　　金：上海工程技术大学大学生创新创业计划项目资助(CX1504004)

摘　　要：工业酒精含水量为5%左右,它是一种恒沸物,共沸为78.15℃。考察目前工业上制取无水乙醇最常用的几种方法,都有各自的缺点。本文主要介绍了在萃取精馏和溶盐精馏优缺点的基础上,发展起来的一种新的方法—加盐萃取精馏法,研究乙二醇+氯化钠在乙醇—水体系中的分离作用。Industrial alcohol is about 5% moisture content,it is aconstant boiling mixture,as 78. 15 ℃ a-zeotropic. Several methods of preparing anhydrous alcohol in industry are investigated and have their own shortcomings. In the extractive distillation and soluble salt distillation advantages and disadvantages based and developed a new method of extractive distillation with salt method is introduced in this paper,ethylene glycol ＋ sodium chloride in ethanol - water in the system of separation of roles is researched.

关 键 词：无水乙醇 新型萃取剂 加盐萃取精馏 

分 类 号：TQ214[化学工程—有机化工]