METHOD OF DECOMPOSING CYCLOHEXYL HYDROPEROXIDE TO PRODUCE HIGH YIELD OF CYCLOHEXANOL AND CYCLOHEXANONE Russian patent published in 2007 - IPC C07C45/53 C07C35/08 C07C409/06 

FIELD: industrial organic synthesis.

SUBSTANCE: invention relates to technology of air oxidation of cyclohexane followed by treatment of oxidation products to decompose contaminating cyclohexyl hydroperoxide. Decomposition of cyclohexyl hydroperoxide into cyclohexanol and cyclohexanone is accomplished in the following steps: washing cyclohexane oxidation end products with water, separation of phases, and treatment of organic phase with alkali aqueous solution wherein water phase-to-organic phase volume ratio is approximately 0.10:100 to 1.00:100. Thereafter, phases are separated once again and organic phase is brought into contact with catalyst containing cobalt salt in alkali aqueous solution. Resulting two-phase product is stirred, and after next separation of phases, cobalt-containing alkali aqueous phase is removed and organic phases is washed with water. Part of alkali aqueous phase may be optionally reused by recycling it to the first reaction product treatment step. Alkali solution can be prepared from alkali hydroxides or alkali carbonates at concentration of alkali solution 2 to 25%, to which cobalt catalyst is added in amount from 5 to 15 ppm.

EFFECT: achieved essentially full conversion of cyclohexane into cyclohexanol and cyclohexanone.

13 cl, 4 ex