Method for preparing cyclohexanone from cyclohexanol

Abstract

The invention discloses a method for preparing cyclohexanone from cyclohexanol. The method comprises the following steps: preparing a copper-based catalyst adopting alumina and graphene as a carrier,mixing cyclohexanol, hydrogen peroxide and water to prepare reaction raw materials, contacting the reaction raw materials with the catalyst, and carrying out a reaction at 30-110 DEG C under 0.1-1.5 MPa to prepare the cyclohexanone. The prepared catalyst has the advantages of effective improvement of the selectivity and the yield of the reaction, increase of the cyclohexanol utilization rate, small use amount and low preparation cost.

Description

Technical field: [0001] The invention relates to the field of preparation of cyclohexanone, in particular to a method for preparing cyclohexanone by using cyclohexanol as a raw material. Background technique: [0002] Cyclohexanone, an organic compound, is a saturated cyclic ketone whose carbonyl carbon atom is included in a six-membered ring. Colorless transparent liquid with earthy smell and minty smell when it contains traces of phenol. It is mainly used as raw material and solvent for organic synthesis in industry. For example, it can dissolve nitrocellulose, paint, paint, etc. It is also a major intermediate in the manufacture of nylon, caprolactam and adipic acid. The preparation method of cyclohexanone is mainly prepared by dehydrogenation of cyclohexanol at present. For this preparation method, at present, there are still some deficiencies, for example, the catalytic activity of the catalyst is poor, the addition amount is large, the preparation process is relative...

AI Technical Summary

Problems solved by technology

However, in this preparation method, the amount of catalyst used is relatively large, which increases the cost, and the conversion rate of cyclohexanol and the selectivity of cyclohexanone need to be further improved.