▎ 摘　　要

NOVELTY - Processing method of copper-containing graphene powder (2) comprises dispersing the graphene powder containing copper to obtain a graphene dispersion, subjecting the dispersion graphene to electrochemical corrosion and removing copper to remove the copper residue, filtering to obtain the filter cake graphene, mixing the oxidized acid solution and the graphene cake, performing chemical corrosion, removing the residual copper and obtaining pure graphene powder, and finishing the treatment. USE - The processing method of copper-containing graphene powder is useful in electronic, chemical industry, and other fields with wide application prospect. ADVANTAGE - The method uses obvious difference of electrode potential of two materials, by electrochemical corrosion, the copper loses electron ionization to form copper ion into solution, the graphene powder will not be electrolyzed and oxidized, forming the oxidation graphene, it will not change the property of the graphite alkene with graphene so as to realize the separation of the copper and graphene powder. The copper ion in the solution cathode a dense copper plate, which is easy to be recycled. The voltage range provided by the method has fast corrosion speed, and will not influence the electrode and the graphene. Because the copper graphene difficult to separate from the copper in the micro-observation. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram illustrating the principle of an electrochemical corrosion copper-removing device in the processing method of copper-containing graphene powder. 1Anode 2Copper-containing graphene powder 3Powder basket 4Filter screen 5Circulating device 6Stirring device 7Cathode