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Method for treating aqueous mother liquor containing hydrochloric acid, sulfuric acid and its hydroxylammonium and ammonium salts
Method for treating aqueous mother liquor containing hydrochloric acid, sulfuric acid and its hydroxylammonium and ammonium salts
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机译:含有盐酸,硫酸及其羟基铵盐和铵盐的水性母液的处理方法
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摘要
Process for processing aqueous mother liquors containing hydrochloric acid, sulphuric acid and their hydroxylammonium and ammonium salts, characterised in that the mother liquors are brought into intimate contact with an excess of cyclohexanone based on the content of hydroxylammonium salts, while maintaining a pH of 3 to 5.5 by adding alkali metal hydroxide solutions, and the cyclohexanone-oxime-containing cyclohexanone phase is separated off and washed with water until it is virtually free from chloride.
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