▎ 摘　　要

NOVELTY - A device comprises reaction device (1) and mixed material injection area (2), oxidant injection area (3), reducing agent injection area (4) and reaction product area (5) that are arranged in sequence. The reaction device is provided with reaction kettle. The reaction device can move from mixed material injection area to reaction product area through oxidant injection area and reducing agent injection area in sequence. The mixed material injection area, oxidant injection area and reducing agent injection area are respectively provided with metering injection port. USE - The device is used for preparing graphene oxide. ADVANTAGE - The device has characteristics of small batch and multi-batch processing. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene oxide. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of device for preparing graphene oxide. (Drawing includes non-English language text). Reaction device (1) Mixed material injection area (2) Oxidant injection area (3) Reducing agent injection area (4) Reaction product area (5)