Metal porphyrin catalysts for cyclohexane oxidation

By using metal porphyrin as a catalyst, cyclohexane was oxidized in air to produce cyclohexanol and cyclohexanone. Iron porpyrin and cobalt porpyrin were used in experiments, and their catalytic effects were compared. The results showed that cobalt porpyrin was superior to iron porphyrin in catalytic oxidation at a certain conversion rate. The selectivity of the products can be improved by using cobalt porphyrin with concentration of 3 mg/L as a catalyst, selecting oxidation temperature 145 -150℃ and residence time of cyclohexane 55 min and adopting three series stirring vessel with decay cascade of temperature series.