Ir/AlO(OH)催化剂对氯代硝基苯催化加氢反应的研究  

High active and selective hydrogenation of p-chloronitrobenzene over Ir/AlO(OH)

作　　者：王银虎[1] 樊光银[1] 张春[1] 黄文君[1] 邓红英[1] 朱小红[1] 

机构地区：[1]西华师范大学化学化工学院化学合成与污染控制四川省重点实验室,四川南充637002

出　　处：《应用化工》2013年第3期397-400,共4页Applied Chemical Industry

基　　金：国家自然科学基金项目(21207109);四川省教育厅自然科学重点项目(11ZA034);西华师范大学博士启动基金项目(09B006)

摘　　要：采用醇回流还原沉淀法制备含有大量结构水的Ir/AlO(OH)催化剂,用于常压下对氯硝基苯加氢,考察了催化剂用量、反应时间、温度、水的比例以及溶剂等因素对反应的影响。结果表明,当乙醇和水的比例为5∶2,温度为35℃,反应时间为5 h,对氯硝基苯的转化率可达到100.0%,对氯苯胺的选择性大于99%,并且未发现脱卤产物,显示了良好工业应用前景。The Ir/A10 （OH） catalyst containing a large number of structural water was prepared by alco- hol reduction and precipitation method. Effect of amount of catalyst, reaction time, reaction temperature, the proportion of water and solvent, etc. on p-CNB hydrogenation were investigated. The results showed that when the ratio of ethanol to water were 5： 2,temperature was 35℃, reaction time 5 h, the p-CNB con- version of 100.0% was obtained with the highest selectivity （ 〉 99% ）for p-CAN under optimum conditions, and the product of hydrodechlorination could be not observed, suggesting a new prospect for industrial applications.

关 键 词：对氯苯胺 Ir/AlO(OH)催化 对氯硝基苯 加氢 

分 类 号：TQ032.41[化学工程]