一种邻二甲苯硝化的工艺研究  

A process study of o-xylene nitration

作　　者：王鑫 孙烨 赵笑男 WANG Xin;SUN Ye;ZHAO Xiaonan(Xi'an Wonder Energy Chemical Co.,Ltd.,Xi'an Shaanxi 710000,China)

机构地区：[1]西安万德能源化学股份有限公司,陕西西安710000

出　　处：《石油化工应用》2024年第10期106-108,共3页Petrochemical Industry Application

摘　　要：采用微反应器合成邻二甲苯的最佳工艺为:混酸组成m硫酸∶m硝酸∶m水=2.07∶1.00∶0.89,n硝酸∶n邻二甲苯为1.2∶1.0,体系温度40℃,反应时间60 min,邻二甲苯的转化率达到99.0%以上,杂质含量为3.91%,低于市场工艺。The optimal process for the synthesis of o-xylene using a microreactor was as follows,the mixed acid was msulfuric acid∶mnitric acid∶mwater=2.07∶1.00∶0.89,nnitric acid∶no-xylene was 1.2∶1.0,the system temperature was 40℃,and the reaction time was 60 min.The conversion rate of o-xylene was more than 99.0%,and the impurity content was 3.91%,which was lower than the market process.

关 键 词：微反应器 邻二甲苯 3-硝基邻二甲苯 4-硝基邻二甲苯 

分 类 号：TQ246.1[化学工程—有机化工]