▎ 摘　　要

NOVELTY - One for nano graphene preparation of supercritical reaction kettle, comprising a reaction kettle, the heating system, the pressure control system, collecting kettle, connecting the reaction kettle heating system, pressure control system, collecting kettle. This utility new type using end face of U-shaped permanent magnetic driving stirrer, completely static seal, no leakage, high temperature resistance, high pressure, stirring rotating speed high, stable operation, low noise, convenient operation, and is of the special product collecting kettle for preventing graphene again, is mainly used for green production of graphite.