▎ 摘　　要

NOVELTY - Oil-removing dispersion liquid comprises a mother liquor of graphene oxide amphiphilic nanomaterial grafted with lipophilic carbon chains and water. The concentration of the graphene oxide amphiphilic nanomaterial mother liquor grafted with lipophilic carbon chains is 0.008-0.04 wt.%. USE - Oil-removing dispersion liquid for degreasing oily waste, where oily waste includes oily drill cuttings and oily sludge (all claimed). ADVANTAGE - The oil-removing dispersion liquid is simple and easy to implement, and the mother liquor of the graphene amphiphilic nano material can be recycled for multiple times, which takes into account the effects of energy saving and environmental protection. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing a oil-removing dispersion liquid, which involves mixing mother liquor of the graphene oxide amphiphilic nanomaterial grafted with lipophilic carbon chains with water according to a certain ratio, and then stirring to prepare a oil-removing dispersion liquid with a certain concentration; and (2) use of the oil-removing dispersion liquid is claimed for degreasing oily waste.