▎ 摘　　要

NOVELTY - Production of graphene involves dispersing the graphene precursor in a liquid to create suspension, subjecting the graphene precursor suspended in the liquid to a mechanical treatment and separating graphene from the suspension. The graphene precursor suspended in the liquid is subjected to at least two different mechanical treatments at the same time. The mechanical treatment involves mixing operation and ultrasonic processing. The liquid with the graphene precursor in suspension is cooled. USE - Production of graphene used in electronics. ADVANTAGE - The method enables economical and efficient production of graphene free from strong and/or toxic chemicals. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a device for producing graphene. Probe (1) Shear mixer (2) Speed controller unit (3) Sample cup (6) Ultrasonicator (7)