硫磺及乙酐复合催化氯化制备氯乙酸工艺  

The Process of Chlorination of Acetic Acid to Synthesize Monochloroacetic Acid Using Acetic Anhydride & Sulfur as Catalysts

作　　者：张汉杰[1] 单晓军 刘定华[3] 

机构地区：[1]盐城市环境保护科学研究所,江苏盐城224002 [2]盐城市鹏宇化工有限公司,江苏盐城224001 [3]南京工业大学化学化工学院,江苏南京210009

出　　处：《江苏化工》2006年第13期15-16,20,共3页Jiangsu Chemical Industry

摘　　要：通过对硫磺和乙酐催化氯化制备氯乙酸反应机理的分析研究,采用硫磺及乙酐复合催化剂,并且对氯化温度、氯化气氛、尾气回收等进行了过程优化,实现了乙酸氯化反应工艺条件的重大突破,使得氯乙酸的收率达到92.1%。The mechanism for chlorinate acetic acid to monochloroacetic acid by using acetic anhydride or sulfur as catalysts respectively was studied. Using sulfur & sulfur as catalysts,the process optimization study of chlorination temperature and chlorination gas and callback of trail gas were established. The process important breakthroughs of chlorination reaction have been made. The income of monochloroacetic acid was 92.1%.

关 键 词：氯乙酸 氯化 催化 

分 类 号：TQ225.3[化学工程—有机化工]