合成2-氰基吡啶的新型催化剂开发  

Development of a novel 2-cyanopyridine synthesis catalyst

作　　者：张聪 刘小琴 Zhang Cong;Liu Xiaoqin(Hanzhong Laitu Technology Development Co., Ltd.,Hanzhong 723200,Shaanxi,China)

机构地区：[1]汉中来途科技发展有限公司,陕西汉中723200

出　　处：《工业催化》2022年第2期74-76,共3页Industrial Catalysis

摘　　要：采用捏合法制备了以铬为主,银、铈为助剂的钒钛催化剂,并在固定床反应器中考察其催化2-甲基吡啶氨氧化合成2-氰基吡啶。结果表明,在反应温度374℃,物料n(2-甲基吡啶)∶n(氨)∶n(空气)=1∶2.5∶45和空速1.2 h^(-1)的最佳反应条件下,2-甲基吡啶转化率为99.6%,2-氰基吡啶收率为88.4%。A vanadium-titanium catalyst using chromium as the main active component and silver and cerium as the promoters was prepared by mixing method.Performance of the catalyst for ammoxidation of 2-methylpyridine to 2-cyanopyridine was investigated in a fixed-bed reactor.The results showed that under the optimum reaction condition of 374℃,2-methylpyridine/ammonia/air molar ratio of 1∶2.5∶45 and LHSV of 1.2 h^(-1),2-methylpyridine conversion of 99.6%and 2-cyanopyridine yield of 88.4%was obtained.

关 键 词：精细化学工程 氨氧化 2-甲基吡啶 2-氰基吡啶 

分 类 号：TQ251.3[化学工程—有机化工] TQ426.94