| 摘要 |
1. The method of separating cyclohexanone in the distillation of the products of cyclohexane oxidation and the products of cyclohexane dehydrogenation, in which the mixtures which contain cyclohexanone and cyclohexane as their main components are dehydrated in separate columns, further the low-boiling contamination is separated from cyclohexanone, cyclohexanone and then cyclohexane are separated, next the latter is dehydrogenated and the products of dehydrogenation are reversed to distillation, characterized in that the dehydrated products of the cyclohexane oxidation and dehydrated products of cyclohexane dehydrogenation are entered separately into two forerunning columns, from which the depleted liquids are directed separately to the column, in which cyclohexanone is distilled, and the depleted liquids devoid of compounds with the boiling point lower than of the cyclohexanone from the oxidation of cyclohexane is entered into the column lower than the depleted liquid devoid of compounds with the boiling point lower than cyclohexanone from the dehydrogenation of cyclohexane, and the distillate from the forerunning column fed with a dehydrogenated product of cyclohexanone dehydrogenation is entered into the forerunning column fed with the dehydrated product of cyclohexane oxidation.2. The embodiment according to Claim No. 1 characterized in that the dehydration of the products of cyclohexane dehydrogenation is carried out azeotropically with the use of cyclohexane as an azeotrope agent entered into the upper part of the column for the dehydration of the products of cyclohexane dehydrogenation, and the agent is used in excess in proportion to its amount resulting from the azeotropic composition.
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