邻氯甲苯生成邻氯氯苄热危险性研究  

Thermal Hazard Study on O-chlorotoluene to O-chlorobenzyl Chloride

作　　者：李佳悦 任硕 崔云云 孙倩 钱华[1,3] 李芳 LI Jiayue;REN Shuo;CUI Yunyun;SUN Qian;QIAN Hua;LI Fang(School of Chemistry and Chemical Engineering,Nanjing University of Science and Technology,Jiangsu Nanjing 210094;China Society of Explodives and Blasting,Beijing 100089;China National Quality Supervision Testing Center for Industrial Explosive Materials,Jiangsu Nanjing 210094,China)

机构地区：[1]南京理工大学化学与化工学院,江苏南京210094 [2]中国爆破器材行业协会,北京100089 [3]国家民用爆破器材质量检验检测中心,江苏南京210094

出　　处：《广州化工》2025年第4期84-87,共4页GuangZhou Chemical Industry

摘　　要：为研究邻氯甲苯氯化生成邻氯氯苄反应过程热危险性,分别采用差示扫描量热仪(DSC)、绝热加速量热仪(ARC)、Gaussian09软件对原料、产物的热分解情况以及氯化反应过程的热效应进行研究。结果表明:原料邻氯甲苯放热量为381 kJ·kg^(-1);反应后混合物料放热量为414.76 kJ·kg^(-1);邻氯氯苄放热量为210.30 kJ·kg^(-1)。反应失控情况下最大反应速率到达时间为24 h时所对应的温度为273℃;综合考虑以实测数据对工艺危险度等级进行评估,可知工艺存在冲料及分解风险。In order to investigate the thermal hazard of chlorination in the synthesis of ortho-chlorotoluene,differential scanning calorimeter(DSC),adiabatic accelerated calorimeter(ARC)and Gaussion 09 software were used to study the thermal decomposition of raw materials and products as well as the thermal effect of reaction.The results showed that the heat of ortho-chlorotoluene was 381 kJ·kg^(-1),heat of decomposition of reacted mixture and O-chlorobenzyl chloride was 414.76 kJ·kg^(-1)and 210.30 kJ·kg^(-1),respectively.The initial temperature was 273℃when the maximum reaction rate was achieved at 24 h.Based on the conducted measured data,it was indicated that the process have the risk of flushing and decomposition.

关 键 词：邻氯氯苄 氯化反应 热危险性 绝热加速量热仪 反应量热仪 

分 类 号：TQ241.1[化学工程—有机化工]