▎ 摘　　要

NOVELTY - Preparation of carbon-based attapulgite composite material involves sieving the attapulgite clay, performing purification, acidification and amination modification treatments to obtain modified attapulgite clay, mixing graphene oxide, 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride, and N-hydroxysuccinimide, adjusting pH of the resulting mixture to 5-6, ultrasonically dispersing, adding modified attapulgite clay to the mixed solution, and stirring at 60-100 degrees C for 1-3 hours. USE - Preparation of carbon-based attapulgite composite material as demulsifier in demulsification treatment of oil-in-water emulsions (all claimed). ADVANTAGE - The method enables efficient and rapid manufacture of carbon-based attapulgite composite material having demulsification effect of 60% or more, and reduced oily sewage discharge to the environment. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) carbon-based attapulgite composite material, which is prepared by the method; and (2) use of the carbon-based attapulgite composite material as a demulsifier in the demulsification treatment of oil-in-water emulsions.