▎ 摘　　要

NOVELTY - Oxidizing naphthenes comprise contacting cycloalkane with the catalyst under oxidation reaction conditions, where the catalyst is graphene, the graphene is prepared into an aqueous dispersion of graphene with a content of 0.01-1 wt.%, allowing to stand for 1 hour at the same temperature, measuring absorbance of the upper, middle and bottom graphene aqueous dispersions of the same volume, where the relative deviation of the absorbance of the upper, middle and bottom graphene aqueous dispersions is not greater than 10%, preferably less than or equal to 5%, after allowing to stand for 12 hours, the relative deviations in absorbance of the upper, middle and bottom graphene aqueous dispersions are not greater than 20%, preferably less than or equal to 10%. USE - The method is useful for oxidizing naphthenes.