精喹禾灵废水中对甲苯磺酰氯的回收

Recycle p-Toluenesulfonyl Chloride in Quizalofop-P-ethyl Manufacturing Wastewater

介绍了从精喹禾灵废水中的对甲苯磺酸盐(钠盐、钾盐)回收对甲苯磺酰氯的方法。废水酸化后,通入氯气制得对甲苯磺酰氯,含量大于98%,收率大于95%。

A method for recycle p-toluenesulfonyl chloride from p-toluenesulfonate in quizalofop-P-ethyl manufactur- ing wastewater was introduced, p-Toluenesulfonate was acidified, then reacted with chlorine. The reaction product of p-toluenesulfonyl chloride was more than 98%, and the yield was over 95%.