FIELD: chemistry.
SUBSTANCE: method involves the preparation of cyclohexanone by cyclohexene oxidation, the isolation of cyclohexanone from a mixture of water-acetonitrile-cyclohexene-cyclohexanone of any composition by combining in the process scheme an autoclaving rectification with a medium-volatile separation agent acetonitrile and three-phase delamination in a Florentine vessel followed by feeding each layer to the rectification columns. The process scheme preferably comprises four distillation columns and a Florentine vessel.
EFFECT: separation of a reaction mixture of any composition into practically pure components that meet the quality requirements of marketable products.
2 cl, 2 dwg, 4 ex
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