β-羟乙基乙二胺环合催化剂的研究  

Study on the Catalysts Em ployed in Cyclisation ofβ┐ Hydroxyethylethylenediam ine

作　　者：陈立功[1] 吕萌[1] 许正双[1] 王多禄[1] 范国梁[1] 周维义[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《化学工业与工程》1999年第5期275-278,共4页Chemical Industry and Engineering

基　　金：天津市自然科学基金

摘　　要：本文研究了 Ｃｕ／γ Ａｌ２ Ｏ３ 与 Ｃｕ Ｏ／γ Ａｌ２ Ｏ３ 两种催化剂对β羟乙基乙二胺环合反应的催化作用，证明在一定条件下，上述两种催化剂的作用类似，环合出哌嗪的收率可达８７％ 以上。此外，还对催化剂 Ｃｕ Ｏ／γ Ａｌ２ Ｏ３ 进行了修饰和改性，从而提高了催化剂的稳定性和选择性。用铜抑制剂处理载体而制备的催化剂，哌嗪的最高收率可达９２％ ；以γ Ａｌ２ Ｏ３ 超细粉为载体的催化剂的稳定性可得以提高。The catalytic perform ance of Cu/γ Al2 O3 and Cu O/γ Al2 O3 em ployed for cycli sation of β hydroxyethylethylenediam ine w ere studied in the present paper. Thesim ilar results w ere obtained from cyclisations ofβ hydroxyethylethylenediam ine byem ployed the above tw o catalysts under certain reaction conditions,the yield ofpiperazine w as up to 87% . Furtherm ore,m odification ofthe catalystw as carried outin order to increase ofthe selectivity and stability ofthe catalystw hen the catalystprepared from treated carrier w ith copper deactivator w as em ployed forthe cyclisa tion,piperazine w as obtained up to 92% yield. As the superfine pow der of γ Al2 O3w as em ployed as carrier,the stability ofthe catalystw as greatly im proved.

关 键 词：Β-羟乙基乙二胺 环合反应 催化剂 Cu/γ-Al2O3 CuO/γ-A12O3 铜 三氧化二铝 哌嗪 含氮杂环化合物 

分 类 号：O626.4[理学—有机化学]