间二甲苯氨氧化制间苯二腈工艺  

The Process for Making Isophthalonitrile by Ammoxidation of m - Xylene

作　　者：沈伟[1] 

机构地区：[1]中国石化股份有限公司上海石油化工研究院,上海201208

出　　处：《上海化工》2002年第19期29-31,共3页Shanghai Chemical Industry

摘　　要：以间二甲苯为原料,NC- Ⅲ型为催化剂,对间二甲苯氨氧化制间苯二腈的工艺条件进行了试验研究。结果表明,在反应温度为400～425℃、反应压力为0.02～0.03MPa、间二甲苯:氨:空气=1:5～7:35(摩尔比)、反应线速为0.4～0.6 m·s^(-1)、WWH=0.05～0.09hr^(-1)条件下,间苯二腈的重量收率超过92％,纯度达99.7％(m/m)。国内首套2000t·a^(-1)工业装置已成功运行。Using m - xylene as feed, the process conditions for producing isophthalonitrile by amraoxidation of m - xylene in the presence of NC - ffi catalyst were tested and studied. The study results showed that isophthalonitrile has over 92% of weight yield and up to 99. 7 % (m/m) of purity at the temperature of 400 ~ 425℃ under the pressure of 0. 02 ~ 0. 03MPa, and the reaction conditions.of m - xylene : NH3: air = 1: 5 ~ 7 : 35(mole ratio), reaction linear velocity of 0. 4 ~ 0. 6m s-1 and WWH of 0. 05 ~0. 09 hr-1. The first domestic commercial plant having a production capacity of 2000t a-1 has been successfully put into operation.

关 键 词：工艺 间二甲苯 氨氧化 间苯二腈 制造 

分 类 号：TQ244[化学工程—有机化工]