Ni/硅藻土催化2,4-二硝基甲苯加氢反应研究  

Study on Hydrogenation Reaction of 2,4-Dinitrotoluene Using Ni/Kieselgur as Catalyst

作　　者：李贵贤[1] 杨磊[1] 马建军[1,2] 司海娟[3] 董宇航[1] 

机构地区：[1]兰州理工大学石油化工学院,730050 [2]甘肃银光聚银化工有限公司,白银730900 [3]兰州石油机械研究所,730050

出　　处：《聚氨酯工业》2009年第1期30-32,36,共4页Polyurethane Industry

摘　　要：以Ni/硅藻土为催化剂,研究了2,4-二硝基甲苯(2,4-DNT)在2,4-二氨基甲苯(2,4-TDA)和乙醇混合溶剂中加氢生成2,4-TDA的反应历程,考察了反应温度、反应时间和氢气压力等条件对2,4-DNT加氢的影响。结果表明,反应温度和反应时间是影响2,4-DNT加氢的主要因素,最佳反应条件为:反应温度120～130℃、氢气压力2.5～3.0MPa,反应时间140min。The hydrogenation reaction pathway of 2,4-dinitrotoluene(2,4-DNT)over Ni/kieselgur were studied using TDA and alcohol as solvent.Effect of reaction temperature,reaction time,pressure on hydrogenation reaction were studied.Temperature and time were main effect factors,the optimized reaction conditions were temperature 120～130 ℃,pressure 2.5～3.0 MPa and time 140 min.

关 键 词：Ni/硅藻土 2 4-二硝基甲苯 加氢反应历程 

分 类 号：TQ246.1[化学工程—有机化工]