间二硝基苯精制工艺的改进

Improvement on Refining Process of m-Dinitrobenzene

对传统的精制间二硝基苯的方法进行了改进 ,即利用相转移催化磺化反应 ,对粗制间二硝基苯进行处理 ,将其中的邻、对位异构体转化为对应的硝基苯磺酸盐 。

This article improved the traditional way of refining m dinitrobenzene.Crude m dinitrobenzene was treated by phase transfer catalytic sulfonation,and o or p isomer converted the corresponding nitro benzenesulfonate.This process can get high pure m dinitrobenzene.