催化氢化法制备醋酸甲脒的研究  

Preparation of methanimidamide monoacetate by catalytic hydrogenation

作　　者：周阳[1] 陈先明[1] 赵帆[1] 

机构地区：[1]湖北省化学研究院,湖北武汉430074

出　　处：《工业催化》2004年第9期39-41,共3页Industrial Catalysis

摘　　要：采用以活性炭为载体负载Pd、In制备的催化剂,在醋酸存在条件下,将氰胺加氢合成醋酸甲脒。考察了催化剂组成(Pd In/C)、反应温度、氰胺和醋酸的物质的量的比对反应速率的影响。结果表明,最佳反应条件为温度10℃,氰胺和醋酸的物质的量的比1∶1 1～1∶1 2。催化剂回收处理后可重复使用8次。Methanimidamide monoacetate was synthesized by hydrogenation of cyanamide over Pd-In/C catalyst in the presence of acetate acid. Influence of composition of the Pd-In/C catalyst, reaction temperature (10～30 ℃) and n (cyanamide) ∶n (acetate acid) were investigated.Optimum reaction condition was obtained as follows: 10 ℃, n (cyanamide) ∶n (acetate acid)= 1∶1.1 to 1 ntimes.

关 键 词：氰胺 醋酸甲脒 氢化催化剂 

分 类 号：TQ225.264[化学工程—有机化工] TQ426.81