▎ 摘　　要

NOVELTY - Preparing graphene dispersion involves adding 0.1-10 mg/mL graphene and 0.01-20 mg/mL dispersing agent to the solvent and mixing. The mixture is evenly dispersed in dispersing device at a speed of 100-14000 revolutions per minute. The mixture is mixed in electric mixer at a speed of 10-2000 revolutions per minute. The ultrasonic frequency is adjusted at 20-80 kiloHertz and temperature of cooling system is adjusted at 0-20 degrees C for 0.5-24 hours to obtain graphene dispersion. USE - Method for preparing graphene dispersion (claimed). ADVANTAGE - The method enables to prepare graphene dispersion in quick, eco-friendly and cost-effective manner that is non-toxic, and has increased production efficiency, high stability and wide prospect of large-scale industrial application. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for dispersing device, which comprises colloid mill disc, high shear dispersing head, shaped ultrasonic probe, electric mixer, cooling system and the motor, where high shear dispersing head is located below colloid mill plate. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a dispersing device. Ultrasonic probe (1) Electric mixer (2) Colloid mill disc (5) Dispersing head (6) Motor (7) Cooling system (10)