N-乙基哌嗪合成的催化剂研究  

Research of the catalysts for synthesis of N-ethylpiperazine

作　　者：兰婷[1] 王宝龙[1] 张俊娜[1] 李明华[1] 苏海鹏[2] 

机构地区：[1]第四军医大学药学系,陕西西安710032 [2]西安近代化学研究所,陕西西安710065

出　　处：《应用化工》2012年第11期1976-1979,共4页Applied Chemical Industry

摘　　要：采用气固相反应装置,将催化剂固载在反应器中,反应原料哌嗪和乙醇经预热气化后进入反应器反应,通过比较哌嗪的转化率(XPA),N-乙基哌嗪的选择性(SEPA)和副产物三乙烯二胺的选择性(STEDA),筛选合成N-乙基哌嗪用催化剂。结果表明,γ-Al2O3的效果较好。用离子交换法对催化剂进行改性后,其催化活性有很大提高。Using the gas-solid reaction device, the catalyst is immobilized in the reactor, then put pipera- zine and ethanol into the reactor to reaction after preheating and gasify. By comparing the conversion of piperazidine, the selectivity of N-ethylpiperazine and triethylene diamine filtering synthesis of N-eth- ylpiperazine catalyst. The results showed γ-Al2O3 is better. The ion exchange can improve catalytic activity greatly.

关 键 词：哌嗪 N-乙基哌嗪 催化剂 

分 类 号：TQ463.5[化学工程—制药化工]