双重负载双金属催化剂催化的硝基苯氢化还原  

Hydrogenation of Nitrobenzene by Dually Supported Bimetallic Catalysts

作　　者：杨斌[1] 余正坤[1] 徐筠[1] 廖世健[1] 余道容[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《石油化工》1997年第11期740-743,共4页Petrochemical Technology

摘　　要：制备了易于从反应体系中分离的高活性、高选择性双重负载双金属催化剂［０．８０Ｐｄ－０．２０Ｐｔ／ＰＶＰ］／载体，并用于硝基苯还原反应。其中以Ａｌ２Ｏ３为载体的催化剂具有最高活性。考察了钯负载量、乙酸钠用量、溶剂等因素对催化剂活性和稳定性的影响。Dually supported bimetallic catalysts,[0 80Pd 0 20Pt/PVP]/support,were prepared and used in the hydrogenation of nitrobenzene.Catalysts [0 80Pd 0 20Pt/PVP]/Al 2O 3 was the best one among them.The effects of the loading level of Pd,the amount of sodium acetate and the solvent used on the reaction were investigated.The catalyst[0 80Pd 0 20Pt/PVP]/Al 2O 3 exhibited high activity,selectivity and stability in the hydrogenation of nitrobenzene under the favorable reaction conditions.

关 键 词：双金属催化剂 氢化 硝基苯 还原 芳胺 

分 类 号：TQ226.31[化学工程—有机化工] TQ426.82