▎ 摘　　要

NOVELTY - The utility model claims a purifier, wherein the purifier is provided with an upper material processing chamber and a lower salt collecting chamber, the upper material processing chamber is used for crystallizing and precipitating to prepare the salt in graphene oxide or graphite oxide reaction product, the collecting chamber is used for collecting the crystalline salt precipitated in the upper material processing chamber, the upper part material processing chamber and the lower part salt collecting chamber are connected by a first flange, the upper part collecting chamber comprises a shell, the shell is set as a structure connected by the upper cylinder and the lower cone; the side wall of the shell located at the lower cone is provided with an inlet, the shell is provided with a discharging port. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the purifying device.