▎ 摘　　要

NOVELTY - Nano-graphene oil-absorbing material, comprises 10-13.5 wt.% carbon, 0.5-1.3 wt.% silver, 0.1-0.3 wt.% copper(II) oxide, 20-30 wt.% silicon carbide, 20-34 wt.% silicon, 1.03-0.14 wt.% manganese, 0.03-0.04 wt.% germanium, 0.003-0.004 wt.% lead, 100-150 parts per million germanium, and quartz sand and unavoidable absorption of offal material (balance). USE - Used as a nano-graphene oil-absorbing material. ADVANTAGE - The oil-absorbing material: can meet the environment of some areas contaminated by crude oil and heavy oil, the demand for its technology is not high, and its processing process has no by-products; and can well meets the environmental protection and adsorption treatment processes. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing nano-graphene oil-absorbing material comprising (i) firstly heating the activated carbon in the heating device, then grinding to powder, adding distilled water, and at a fixed frequency of 50 KHz at the sound wave frequency oscillating to obtain a turbid liquid of carbon, rapidly centrifuging for 15 minutes, taking the clear turbid liquid, and finally preparing a homogeneous and stable activated carbonene solution; (ii) placing the carbon powder in another crucible, and heating to 1500 degrees C, after heating for 1.5 hours, until the carbon powder is completely melted into a liquid, then placing the carbon liquid into polystyrene according to the ratio, keeping the microspheres and ascorbic acid in the crucible at 100 degrees C for 4 hours, and continuously stirring by tungsten rods, adjusting the pH of the solution to 5-7, and then filtering to obtain a black solid; and (iii) placing trace elements including black solid, manganese powder and germanium powder in the crucible, heating, and melting into a liquid, placing the trace element liquid into a container containing toluene, soaking for 5 hours, and taking out, stirring continuously the distilled water, keeping at 100 degrees C for 3 hours, qualitatively processing, and drying by distillation, sublimation and drying to obtain graphene efficient oil-absorbing material.