PHENYLCYCLOHEXANE OXIDATION TO HYDROPEROX IDE IN THE PRESENCE OF COBALT ACETYLACETONATE

The liquid phase oxidation, with molecular oxygen fell of phenylcycloh exane to cyclohexylbenzene hydroperoxide was studied. The cobalt acety lacetonate (Co(acac)(2)) catalytic role, as well as the catalyst activ ation by the solvent used i.e. N-methyl 2-pirrolidone (NMP) were rende red evident. The hydroperoxide selectivity dependence function of conc entration, both to non-catalytic oxidation, in the presence of AIBN in itiator and to the oxidation catalized by Co(acac)(2), in NMP solvent, was determined. The selectivity decrease with the conversion, reactio n temperature, catalyst concentration and hydrocarbon concentration gr owth.