▎ 摘　　要

NOVELTY - Graphene loaded cobaltosic oxide catalyst for direct ammoxidation of phenylcarbinol, aqueous ammonia and oxygen to prepare benzoyl amide, is claimed. The catalyst is prepared by dispersing graphene in absolute ethanol, performing ultrasonography to obtain homogeneous suspension, controlling weight ratio of ethanol and graphene, adding cobalt acetate aqueous solution, adding aqueous ammonia and water, controlling volume ratio of cobalt acetate aqueous solution and ethanol, aqueous ammonia and ethanol, and added water and ethanol; refluxing, cooling, suction filtering, washing and vacuum drying. USE - The catalyst is useful for direct ammoxidation of phenylcarbinol, aqueous ammonia and oxygen to prepare benzoyl amide, is claimed. . ADVANTAGE - The catalyst is easy to obtain, can be recycled and repeatedly used, and has excellent activity in aromatic alcohol ammoxidation. The preparation process of benzoyl amide has mild reaction conditions, does not generate waste, has simple product separation process, and produces benzoyl amide with purity more than 99 % (claimed). DETAILED DESCRIPTION - Graphene loaded cobaltosic oxide catalyst for direct ammoxidation of phenylcarbinol, aqueous ammonia and oxygen to prepare benzoyl amide, is claimed. The catalyst is prepared by (a) dispersing graphene in absolute ethanol, performing ultrasonography for 2 hours to obtain homogeneous suspension, controlling the weight ratio of ethanol and graphene at (1500:1)-(3500:1); (b) adding a certain amount of cobalt acetate aqueous solution with a concentration of 0.05-0.3 mol/l into the suspension, adding a certain amount of aqueous ammonia with ammonia content of 28 wt.% and a certain amount of water, controlling the volume ratio of the cobalt acetate aqueous solution and ethanol at (1:30)-(1:10), controlling the volume ratio of the aqueous ammonia and ethanol at (0-1): 50, controlling the volume ratio of the added water and ethanol at (1:34)-(1:20); (c) refluxing the suspension at 60-80 degrees C for 10 hours; (d) transferring into reaction kettle (500 ml) containing hot water (150 degrees C) for 2-5 hours; and (e) cooling the reacted suspension to room temperature, suction filtering, washing and vacuum drying at 50 degrees C for overnight. An INDEPENDENT CLAIM is also included for preparing benzoyl amide by direct ammoxidation of phenylcarbinol, aqueous ammonia and oxygen using the graphene loaded cobaltosic oxide catalyst, comprising (i) dispersing a certain amount of the catalyst into solvent, adding phenylcarbinol and aqueous ammonia, controlling the weight ratio of phenylcarbinol and the catalyst at (1:5)-(1:1), controlling the weight ratio of aqueous ammonia and phenylcarbinol at (0.5:1)-(5:1), and controlling the weight ratio of the solvent and phenylcarbinol at (10:1)-(100:1); (ii) filling oxygen into the reactor until the pressure is 10-30 atmosphere, heating to 120-150 degrees C, stirring and reacting for 0.25-30 hours; and (c) cooling the reaction kettle to room temperature, centrifuging and separating the solid catalyst, then distilling and separating the reaction liquid to obtain benzoyl amide.