国家/地区 中国（4）
IPC部 C（5）
IPC大类 C01（5） C02（5）
IPC小类 C01B（5）
IPC C02F103/34（5）
发明人 ZHAN Z（2）
公开年 2023（3）
申请年 2022（2） 
专利权人

Recycling waste water in preparation of graphene useful in optical, electrical, mechanical, and micro-nano processing, comprises e.g. treating graphene acidic wastewater obtained by acid washing process, degrading and decomposing and mineralizing by semiconductor strong ionization.

ZHAN Z

Zero-discharge treatment method for full resource utilization of waste acid in graphene production by e.g. adjusting supernatant pH to neutral by adding sulfuric acid, evaporating and concentrating by mechanical vapor recompression, crystallizing to obtain potassium sulfate, recycling water.

FENG X, FENG J, XIAO L, FENG S

Device used for extracting graphene, consists of stirring tank connected with feed tank and water tank, circulation pump connected to side of stirring tank through pipeline, pneumatic diaphragm pump, pressure filter device, oxidation catalytic device and filter device.

ZHAN Z

Treating starting liquid containing pollutants comprises adding graphene oxide to starting liquid so as to adsorb part of pollutants and causing pre-treated liquid to flow through porous membrane comprising hollow fibers.

MELUCCI M, PALERMO V, KOVTUN A, NAVACCHIA M L, BOCCHI L

Graphene production equipment with sewage recycling function, has water pump with one end communicated with ultra-filter box and other end communicated with one end of recovery pipe whose other end is communicated with production tower.

WANG H