三氯杀螨醇提纯工艺

The process for purification of dicofol

介绍了三氯杀螨醇提纯工艺研究现状,选择了最佳提纯工艺—重结晶和溶剂萃取相结合的方法,所得合格三氯杀螨醇原药含量达到90%,其中滴滴涕的相关杂质含量≤0.5%;单批回收率较溶剂萃取法提高20%左右。

The process for purification of dicofol was introduced. A new recrystalization-extration combined method was used to obtaine dicofol technical with ≥90% pure, and content of DDT related impurities was less than 0.5%. Batch recovery of solvent was 20% higher than that of solvent extraction.