DEVICE FOR MULTISTAGE CYCLOHEXANE OXIDATION Russian patent published in 2010 - IPC C07C35/08 

FIELD: chemistry.

SUBSTANCE: device for multistage cyclohexane oxidation is made in form of a cascade consisting of at least two reactors 1 and 2. Reactors 1 and 2 are fitted with connecting pipes 3 and 4 for inlet of cyclohexane and the reaction mixture. Air is let into the reactors through connecting pipes 7 and 8 which are fitted with multistage distributors - air bubblers 9 and 10. The reaction mixture comes out of the devices through bottom connecting pipes 11 and 12. Connecting pipe 11 is joined to pipe 13 for feeding the mixture into the second oxidation stage. An intermediate collector 14 is fitted into pipe 13 before the connecting pipe 4 of the reactor 2, where the intermediate collector has a flow control valve 15. The intermediate collector 14 is fitted with an overflow pipe 16.

EFFECT: more efficient synthesis of cyclohexanone and cyclohexanol.

7 cl, 4 dwg