2,6-二氯苯甲腈合成工艺研究  

Study on the Synthesis of 2,6-Dichlorobenzonitrile

作　　者：马勇[1] 袁瑞明 吴宝健 蔡可举 陈英杰 周艳 颜景城 Ma Yong, Yuan Ruiming, Wu Baojian, Cai Keju, Chen Yingjie, Zhou Yan, Yan Jingcheng(Jiangsu Yangnong Chemical Group Co,, Ltd. Yangzhou 225009, Chin)

机构地区：[1]江苏扬农化工集团有限公司,江苏扬州225009

出　　处：《广东化工》2018年第6期46-46,78,共2页Guangdong Chemical Industry

摘　　要：以2,6-二氯甲苯为原料,采用五氧化二钒为催化剂,通过氨气、氧气反应制备2,6-二氯苯甲腈。考察投料比、反应温度、反应时间等因素对收率的影响;结果表明,最佳反应条件为2,6-二氯甲苯:氨气:氧气的摩尔比为1︰1.1︰2.5,反应温度300℃,反应时间15 s,最终原料转化率91%,产品收率89%。2,6-Dichlorobenzonitrile was prepared by reaction of 2,6-Dichlorotoluene and ammonia with oxygen as the material, vanadium pentoxide as catalyst. The effects of the ratio of reagents and reaction temperature reaction time to the yield of 2,6-Dichlorobenzonitrile. The results showed that the optimal condition molar ratio of 2,6-Dichlorotoluene ammonia and oxyge were 1 ： 1.1 ： 2.5, reaction temperature 300 ℃, reaction time 15 s, the conversion rate of raw materials is 91%, the yield of the product reached 89 %.

关 键 词：2 6-二氯甲苯 2 6-二氯苯甲腈 五氧化二钒 

分 类 号：TQ[化学工程]