▎ 摘　　要

NOVELTY - A preparation method of graphene modified intermediate phase asphalt comprises (S1) using a dispersant with a molecular structure similar to that of a base asphalt and graphene for mixing treatment to obtain a modified graphene with dispersant molecules adsorbed on the surface, (S2) placing the modified graphene and a matrix asphalt in a vacuum mixer, stirring and mixing the mixture until the mixture is in a semi-solid state, uniformly dispersing the modified graphene in a liquid matrix asphalt using the dispersant molecules adsorbed on its surface and mixing the matrix asphalt with modified graphene and (S3) transferring the matrix asphalt mixed with modified graphene to a reactor, raising the temperature and pressure to a preset value and maintaining the temperature and pressure for a predetermined period to obtain the graphene modified intermediate phase asphalt. USE - The method is used for preparing graphene modified intermediate phase asphalt, which is used as a precursor for preparing high-end carbon material. ADVANTAGE - The method prepares the graphene modified intermediate phase asphalt with uniform shape and size, and improves the yield of the product. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene modified intermediate phase asphalt.