催化还原对氯硝基苯制备对氯苯胺的研究  

THE PREPARATION OF PCHLOROANILINE BY CATALYTIC REDUCTION OF PCHLORONITROBENZENE

作　　者：赵岷[1] 王澜[2] 张怀彬[3] 

机构地区：[1]锦州师范学院化学系,121000 [2]南开大学催化剂厂,天津300071 [3]南开大学化学系,天津300071

出　　处：《精细石油化工》2000年第2期4-6,共3页Speciality Petrochemicals

摘　　要：在氢氧化氧铁催化剂存在下水合肼还原对氯硝基苯制备对氯苯胺 ,结果表明 ,氢氧化氧铁作为催化剂具有很好的催化活性、选择性和重复使用性。当反应温度为 78℃ ,反应时间为 1 2 0 min时 ,对氯硝基苯的转化率可达 1 0 0 % ,对氯苯胺的选择性超过 99%。The pchloroaniline was prepared by catalytic reduction of pchloronitrobenzene with hydrazine in the presence of an iron oxide hydroxide catalyst. The results showed that the catalyst had splendid catalytic activity and selectivity and could be reused. When the reaction temperature was 78 ℃ and reaction time was 120 min, the conversion of pchloronitrobenzene was 100% and the selectivity of pchloroaniline was over 99%.

关 键 词：还原 对氯硝基苯 对氯苯胺 催化 

分 类 号：O625.633[理学—有机化学] O621.254.2[理学—化学]