国家/地区 中国（4）
IPC部 B（5）
IPC大类 B03（5）
IPC小类 C01B（5）
IPC C01B032/184（2） C01B032/196（2）
发明人
公开年 2022（5）
申请年 2021（4） 
专利权人

Removing impurities in graphene preparation process comprises e.g. sieving graphene oxide containing metal impurities and non-metal impurities, placing in reaction kettle, stirring, adding soda ash, filtering, rinsing by deionized water, absorbing and processing by sodium hydroxide solution.

DUAN Y

Optimizing device for cathode material of composite ion battery based on graphene, comprises optimized box, sieve plate and permanent magnetic rods arranged equidistantly, where inner wall of optimized box is provided with limiting plate.

LIU J, WANG H, LIU S

Graphene oxide reduction device has material receiving hopper, airflow powder feeding mechanism, dust recycling mechanism, electrode plates, reaction tank provided with valve and tubular sleeve, and microwave emitter set on reaction tank.

YANG Y, ZHENG S

Upgrading coal used in graphene film, comprises cleaning coal and reacting cleaned coal residue with oxidizable inorganic metallic agent, and reacting cleaned coal residue with reducing agent to form upgraded coal.

LAUMB J, AZENKENG A

Graphene solution purifying and impurity removing device has crank that drives connecting rod to move downwards, and outer scraping ring that drives inner scraping seat to move upwards along inner wall surface of first and second compartments.

HUANG X