METHOD OF SEPARATION OF CYCLOHEXANONE FROM REACTION MIXTURE OF WATER - ACETONITRILE - CYCLOHEXENE - CYCLOHEXANONE

摘要

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