Silica as catalyst for cyclohexanone ammoximation with molecular oxygen: a preliminary approach to the kinetic analysis

Abstract Catalytic data relative to the influence of reaction temperature, contact time and reactant concentrations are used for a preliminary approach to the kinetic analysis of cyclohexanone ammoximation with O 2 . A set of empirical kinetic equation is proposed, which accounts qualitatively for the kinetics in a pseudo-stationary state and for the change in catalytic behaviour with the time-on-stream.