摘要
介绍由邻二甲苯氯代 ,再经空气氧化及异构体分离合成氯代苯酐中试规模的合成路线。氧化中采用现行商品苯酐氧化的固定床催化剂催化氧化 ,并采用 45块理论塔板的分离塔分离得到纯度大于 98%的 3 氯代苯酐和 4
A process approaching 3 and 4 chlorophthalic anhydride in high purity via chloriation of o xylene, oxidation of monochloro o xylene by air in gas phase,and separation of 3 and 4 chlorophthalic anhydride afterwards by distillation is described. The applications of both chlorophthalic anhydride are briefly introduced.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2001年第10期5-8,共4页
Chemical Industry and Engineering Progress
关键词
氯代苯酐
催化氯化
氯代
邻二甲苯
合成
chlorophthalic anhydride,catalytical oxidation,chloriation,o xylene
