▎ 摘　　要

NOVELTY - The utility model claims a system capable of continuously recycling concentrated sulphuric acid to prepare graphene oxide, belonging to the technical field of graphene preparation device. The system capable of continuously recycling and preparing graphene oxide comprises a first reaction kettle, the first reaction kettle is respectively connected with the ultrasonic device and the first filter through the discharging pipeline, the ultrasonic device is connected with the feeding port of the first reaction kettle through a circulating pipeline; the solid discharging port of the first filter is connected with the second reaction kettle, the liquid discharging port is connected with the sulphuric acid recycling tank; the discharging port sequentially the sulphuric acid recycling tank is connected with the magnetic rod filter and the first reaction kettle; the discharging port of the second reaction kettle sequentially with the second filter, dispersing tank, homogenizer, the homogenizing machine is connected with the feeding port of the dispersing tank through a circulating pipeline. The system for preparing graphene oxide provided by the utility model, the reaction material can be recycled by intermediate treatment, saving energy and reducing consumption, reducing the environment-friendly cost.