摘要
烯烃与氨或胺直接胺化合成脂肪胺的反应在热力学上是有利的,但在动力学上需要适宜的催化剂进行活化。多种均相催化剂和多相催化剂已被尝试用于此反应,其中酸性沸石催化剂在催化氨与小分子烯烃(主要是乙烯和异丁烯)的反应中表现出了较好的活性和很高的选择性,且清洁无污染。提出应通过对此反应机理的深入研究以筛选出新的、高选择性的沸石催化剂以提高反应的转化率。
The reaction between ammonia or amines and alkenes is thermodynamically beneficial,but requires dynamic activation by special catalysts.Both homogeneous and heterogeneous catalysts have been tried to effect these reactions.The acidic zeolites are reported to show moderate reactivity and high selectivity in the reaction of ammonia with low molecular weight alkenes,mainly ethylene and isobutene.Futhermore,this process is clean.More research work is needed to ascertain the reaction mechanism to develop new,highly selective zeolite catalysts to increase the conversion of the alkenes.
出处
《现代化工》
EI
CAS
CSCD
北大核心
2004年第5期13-15,17,共4页
Modern Chemical Industry
基金
国家自然科学基金资助项目(29876028)
关键词
脂肪胺
烯烃
直接胺化
酸性沸石
催化剂
aliphatic amine
alkene
direct aminatin
acidic zeolite
catalyst
