▎ 摘　　要

NOVELTY - Supercritical high pressure graphene reaction device, comprises a reaction vessel (100), a stripping kettle, a supercritical carbon dioxide supply system (500), and a vacuum pressure loading and unloading system (400). The feeding end of the supercritical carbon dioxide supply system and the feeding end of the vacuum pressure loading and unloading system are respectively connected with the feeding port of the reaction vessel. The reaction vessel is provided with a mechanical stirring device (101), a heating device (103), a high pressure ultrasonic device (102), a pressure sensor and a temperature sensor. The reaction vessel and stripping kettle are sealed structure. The feeding port of the stripping kettle is connected with the discharging port of the reaction vessel by a releasing ball valve (104). The discharging port of the stripping kettle is connected with the receiving end of the vacuum pressure loading and unloading system. USE - Used as supercritical high pressure graphene reaction device. ADVANTAGE - The device: is suitable for large scale industrial production; has simple structure and convenient operation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing graphene using the supercritical high pressure graphene reaction device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the supercritical high pressure graphene reaction device (Drawing includes non-English language text). 100Reaction vessel 101Mechanical stirring device 102High pressure ultrasonic device 103Heating device 104Releasing ball valve 400Negative pressure loading and unloading system 500Supercritical carbon dioxide supply system