摘要
环氧乙烷选择性胺化制备乙醇胺成为近年来胺化反应的热点课题。乙醇胺主要由氨水法与液氨法两种制备方法合成,它们分属于典型的均相催化与多相催化。本文从热力学、动力学、反应机理等方面对氨水法的研究进展进行了系统地综述,并部分探讨了工业上氨水法的工艺条件。从催化剂的种类、表面酸碱性质以及孔径结构等方面对液氨法的新进展进行了系统地阐述,最后探讨了选择性胺化反应的未来研究方向。
The selective amination of ethylene oxide to ethanolamine has become a hot spot in amination reactions in recent years. The preparation of ethanolamine is mainly composed of aqueous ammonia and liquid ammonia methods, which belong to typical homogeneous catalysis and heterogeneous catalysis respectively. This article intends to review the progress in aqueous ammonia method from thermodynamics, kinetics and reaction mechanism. The engineering condition of aqueous ammonia method in industry is also partly discussed. The latest knowledge of catalyst species, surface acid-base property and pore structure in the catalyst is summarized in terms of liquid ammonia method. A prospection on the future research of selective amination is also discussed.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2009年第7期1636-1643,共8页
Progress in Chemistry
基金
国家博士后科学基金项目(No.20080430601)资助
关键词
环氧乙烷
氨
乙醇胺
选择性胺化
ethylene oxide （EO）
ammonia
ethanolamine
selective amination
