乙二醇与1,2-丁二醇的分离方法研究进展  

Advances in methods for separation of ethylene glycol and 1,2-butanediol

作　　者：刘兴伟[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《现代化工》2016年第9期16-19,21,共5页Modern Chemical Industry

摘　　要：综述了乙二醇与1,2-丁二醇分离方法的研究进展,介绍了不同分离纯化技术,主要包括共沸精馏、萃取精馏、萃取与共沸精馏联用、反应精馏、吸附分离等。分析了每种方法的优缺点,指出共沸精馏、共沸精馏与萃取联用的分离技术分离乙二醇与1,2-丁二醇可用于工业规模化生产,吸附分离可用于小规模生产,反应精馏可以作为未来乙二醇纯化技术的发展方向。The research progress of the purification technologies for separation of ethylene glycol and 1,2-butanediol is reviewed. The separation and purification technologies,including azeotropic distillation,extractive distillation,extraction combined with azeotropic distillation,reactive distillation,adsorptive separation,and so on,are introduced. The advantages and disadvantages of each method are analyzed. The combination of azeotropic distillation,azeotropic distillation and extraction separation technology can be used for industrial-scale production. The adsorptive separation can be used for small-scale production. The reactive distillation is regarded as the future direction of glycol purification techniques.

关 键 词：乙二醇 1 2-丁二醇 分离纯化 共沸精馏 萃取精馏 反应精馏 

分 类 号：TQ214[化学工程—有机化工]