In the process of gas-phase oxidation of cyclohexane heterogeneous biomimetic catalysts – per-FTPhPFе(III)OH/Al₂O₃ and PPFе(III)OH/Al₂O₃ were studied on their activity and selectivity for a particular compound. Variation of the process parameters (temperature, concentration of Н₂О₂ in aqueous solution, volume rate of Н₂О₂ supply) enabled to get idea about the active action of these catalysts in the oxidation process of cyclohexane in the mixture with its derivates where their selective effect in relation to cyclohexane is also seen.