用工业甲醇脱水纯化制取高纯甲醇  

Dehydration in the purification process of industry methanol for high purity methanol

作　　者：张志刚[1] 徐世民[1] 张卫江[2] 李鑫钢[2] 

机构地区：[1]天津大学精馏技术国家工程研究中心 [2]天津大学化学工程研究所,天津300072

出　　处：《化学试剂》2006年第9期570-572,共3页Chemical Reagents

摘　　要：高纯甲醇是一种大量应用于化学及微电子工业领域中的重要溶剂,脱水是工业甲醇纯化精制过程中的一个关键问题。本文通过实验考察了分子筛、树脂、间歇精馏、间歇反应精馏、间歇萃取精馏以及半连续间歇萃取精馏等不同脱水方法的脱水性能,其中半连续间歇萃取精馏是一种最经济可行的脱水提纯制备高醇甲醇的绿色化工分离技术。High purity methanol is one of the very important solvents for chemical industry and microelectronic industry. Dehydration is the key process in the purification of industrial methanol. Several methods of dehydration have been examined experimentally. They were molecular sieve, resin, batch distillatim,batch reaction distillation, batch extractive distillation and semicontinuous batch extractive distillation. The experimental resuits showed that semicontinuous batch extractive distillation was the most economical and feasible method.

关 键 词：工业甲醇 高纯甲醇 脱水 间歇萃取精馏 

分 类 号：TQ028.1[化学工程]