邻氯甲苯光氯化合成邻氯苯甲酸  

STUDY ON SYNTHESIS OF o-CHLOROBENZOIC ACID VIA PHOTO-CHLORINATION

作　　者：刘诗飞[1] 刘德峥[2] 郝军峰[1] 黄恩才[1] 章亚东[1] 

机构地区：[1]郑州大学化工学院,郑州450002 [2]平原大学,郑州453003

出　　处：《精细石油化工》2003年第4期9-12,共4页Speciality Petrochemicals

摘　　要：报道了用塔式反应器由邻氯甲苯经催化光氯化然后水解合成邻氯苯甲酸的工艺路线。着重考察了影响反应的主要因素 ,确定了最佳的反应条件 :紫外光照射 ;反应温度 13 0～ 14 0℃ ;反应时间 2h ;催化剂用量为邻氯甲苯量的 2 % ;其产品收率大于 70 % 。The synthetic route for o chlorobenzoic acid via photo chlorination of o chlorotulene in the tower reactor and then by hydrolysis was reported. The main factors affecting the reaction were explored, and the optimum operation conditions were found as follows: under UV irradiation, reaction temperature 130140 ℃, reaction time 2 h, catalyst amount=2% of the volume of o chlorotulene. On these conditions, the yield reaches 70% and the quality of the product catches up with the levels of domestic and overseas similar products.

关 键 词：邻氯甲苯 光氯化 合成路线 邻氯苯甲酸 反应条件 

分 类 号：TQ245.3[化学工程—有机化工]