is run off from the base of the column, while the methyl ethyl ketone is distilled off from the top of the column and recycled.

History

The peroxide process, also called the Pechiney-Ugine-Kuhlmann process, was developed in the early 1970s by Produits Chimiques Ugine Kuhlmann. Originally the process used acetone instead of methyl ethyl ketone. Methyl ethyl ketone is advantageous because the resulting ketazine is immiscible in the reaction mixture and can

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