▎ 摘　　要

NOVELTY - Preparing saturated cardanol hydrogenation catalyst comprises feeding the cardanol, solvent and hydrogenation catalyst, adding to the reaction kettle nitrogen and hydrogen replacement, firstly replacing the gas reaction kettle nitrogen for three times with nitrogen, replacing the gas reaction kettle hydrogen for 3 times, carrying out hydrogenation reaction by heating the condition of stirring to 60-85℃, hydrogen pressurizing to 1-2 MPa, continuously stirring for a period of time, separating by recycling the hydrogenation catalyst in the kettle solution by the recycling device, crystallizing, centrifuging, drying to obtain the saturated cardanol. USE - The method is useful for preparing saturated cardanol hydrogenation catalyst. ADVANTAGE - The method is simple and convenient, saves energy consumption, obtains saturated cardanol with high purity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing pd/graphene composite comprises weighing a certain amount of graphene oxide and add it to deionized water, and ultrasonically treating it for 1.5 hours to obtain a highly dispersed graphene oxide aqueous solution with a concentration of 6.06 mg/ml, adding PdCl2 to water, adding concentrated aqueous ammonia dropwise under stirring to obtain a Pd(NH3)4Cl2 solution with a concentration of 0.02mol/l, after adding the Pd(NH3)4Cl2 solution to the graphene oxide aqueous solution and stirring for 1 h, adding NaBH4 solution, where n(NaBH4):n(Pd):n(graphene oxide)=15:1:6, stirring for 3 hours, performing centrifugal washing, and the pd/graphene composite is obtained after drying at 50°C.