Fe-Al复合催化合成邻氯苯胺  

Synthesis of 2-Chloroaniline by Fe-Al Complex as Catalyst

作　　者：周莹[1] 叶翠层[1] 李水芳[1] 李林[1] 孙汉洲[1] SUN Han-zhou 

机构地区：[1]中南林学院,应用化学研究所,湖南,株洲,412006

出　　处：《精细化工中间体》2005年第3期40-41,共2页Fine Chemical Intermediates

基　　金：湖南省教育厅项目(04C694);中南林学院科技基金项目(0480)

摘　　要：研究了Fe-Al复合催化剂催化水合肼选择性还原硝基制备邻氯苯胺的条件。结果表明:Fe-Al复合催化剂催化水合肼还原硝基的选择性≥99%;还原反应的温度为70℃,物料比为n(邻氯硝基苯)∶n(水合肼)=1.0∶1.8,邻氯苯胺的收率为92.91%,ω(邻氯苯胺)≥99.5%。在工业上具有更广泛的应用价值。2-Chloroaniline,which is an important chemical intermediate,was synthesized from 2-Chloroaniline with hydrazine hydrate by using Fe-Al complex as catalyst. The results showed that the selectivity of the catalytic reaction is over 99%. The reaction temperature was 70℃. The mole ratio was n(1-chloro-2-nitrobenzene):n(hydrazine hydrate)= 1.0:1.8. The yield and content of 2chloroaniline are 93.7% and 99.5%.

关 键 词：Fe—Al复合催化剂 水合肼 选择性 还原 邻氯硝基苯 邻氯苯胺 

分 类 号：TQ246.3[化学工程—有机化工]