Process for the preparation of cyclohexanol and/or cyclohexanone.

摘要

The invention relates to a process for the preparation of cyclohexanol and/or cyclohexanone from cyclohexane, in which process the cyclohexane is dehydrogenated to cyclohexene preferably at a temperature of 200 to 700 DEG C and a pressure of 0.01 to 10 Mpa, the cyclohexene hydrated to cyclohexanol preferably at a temperature of -50 to 150 DEG C and a pressure of 0.01 to 10 MPa, and/or oxidized to cyclohexanone preferably at a temperature of 0 to 350 DEG C and a pressure of 0.01 to 200 MPa, the cyclohexanol and/or the cyclohexanone separated, and the unconverted cyclohexane and/or cyclohexene returned to the dehydrogenation step.