▎ 摘　　要

NOVELTY - Preparing fluorinated graphite involves selecting lump natural coal based graphite and inert electrode respectively anode and cathode, selecting fluorine-containing inorganic salt solution as electrolyte solution, the two electrodes connected with the working power supply, performing electrochemical peeling, obtaining the peeling product, carrying out ultrasonic treatment to the product obtained peeling, taking the suspension liquid to carry out solid-liquid separation and drying treatment to obtain partially purified fluorine oxide powder graphene, mixing the fluorinated oxidised graphene powder obtained with ammonium flouride solution, carrying out hydro-thermal treatment to obtain product after hydro-thermal treatment, naturally cooling the product after the hydrothermal treatment for solid-liquid separation, water washing and drying treatment to obtain product. USE - Method for preparing fluorinated graphite used in aerospace industry and nuclear industry. ADVANTAGE - The method lump coal mine graphite ash removing rate is 92.91%, fluorine content is 16.86 %, and the product fluoridation degree is adjustable.