Liu Cun-yu
2005
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Journal
Guangxi & Development of Chemical Industry
Abstract
AbstrcatThe recovery process of the waste acid in dicofol production was described: p-chlorobenzenesulfonic acid, which was separated by crystallization, was used as catalyst in the hydrolysis step of dicofol synthesis. The remained waste sulfuric acid was vapor distilled to reduce the chloral content so that it could be utilized in fertilizers product.