液相催化加氢制备对苯二胺  

Study on the Preparation of p-Phenylenediamine by Liquid Catalytic Hydrogenation

作　　者：张钺[1] 张谦华 陈根生 张谦[2,3] 

机构地区：[1]河南省科学院质量检验与分析测试研究中心,河南郑州450008 [2]河南省化工研究所有限责任公司,河南郑州450052 [3]河南省化学催化重点实验室,河南郑州450052

出　　处：《河南化工》2011年第5期33-35,共3页Henan Chemical Industry

摘　　要：以对硝基苯胺为原料,乙醇为溶剂,采用骨架镍作催化剂,液相催化加氢制备对苯二胺。该工艺路线可行,最佳反应条件为温度90～110℃,压力1.5～2.0MPa,在最佳条件下产品收率大于90.0%,产品含量大于99.0%。Using p-nitroaniline as raw material,ethanol as solvent,and Raney nickel as catalyst,the p-phenylenediamine is prepared by liquid phase catalytic hydrogenation.The optimized technology is as follows：temperature is 90～110 ℃,pressure is 1.5～2.0 MPa,under this condition,the yield of p-phenylenediamine is over than 90.0%,the purity is over than 99.0%.

关 键 词：对硝基苯胺 骨架镍 液相催化加氢 

分 类 号：TQ246.31[化学工程—有机化工]