2,4-二氯甲苯合成中氯化工序的技术改进  

Improvement on Chlorination Process in the Synthesis of 2,4-Dichlorotoluene

作　　者：吴卫[1] 石绍军[1] 陈文娟[1] 李平辉[1] 

机构地区：[1]湖南化工职业技术学院化学工程系,湖南株洲412004

出　　处：《化工生产与技术》2007年第5期60-61,共2页Chemical Production and Technology

摘　　要：采用降低反应釜搅拌转速、改进通氯方式、降低反应温度等方法,改善了2,4-二氯甲苯合成的反应条件。反应时间由原来的24h缩短为12h,氯气利用率从81.6%提高到90.2%。氯化反应收率从52.3%提高到55.7%,产品纯度提高0.5个百分点;同时降低了消耗,减少了环境污染。Some measures were adopted in the synthesis of 2,4-dichlorotoluene, such as slowing the stirring rotation rate of the reactor, improvement of chlorine addition to improve the reaction conditions yield of chlorination reaction, chlorine utilization and selectivity of 2,4-dichlorotoluene significantly. The innovation reduces the consumption and solves the environment pollution problems. The process is advanced at home and has a very high value to be promoted.

关 键 词：2 4-二氯甲苯 3 4-二氯甲苯 氯化 改进 

分 类 号：TQ242[化学工程—有机化工]