国家/地区 中国（4）
IPC部 B（4） D（2）
IPC大类 B01（4） B32（2）
IPC小类 B01D（4）
IPC B01D046/02（4）
发明人
公开年 2021（4）
申请年 2021（2） 
专利权人

Waste gas processing device for production of circuit board, has cathode electrode and nano ferroferric oxide graphene anode modified electrode that are set in membrane degradation tank.

HU P, TAN G, XU Y

Graphene active carbon powder filtering device comprises filter cylinder, feeding pipe, supporting frame, filter screen, base, air exhaust hole, air filter bag, air suction chamber, collecting chamber, screw thread, starting switch, and module.

CHU X, YANG X, NIE Q, ZHANG W

Preparing graphene dust-removing cloth comprises e.g. preparing spinning solution, spraying to obtain modified graphene fiber intermediate layer; obtaining interlayer stock solution, and spraying to obtain intermediate interlayer.

LI X, ZHANG D, WEI Y, DAI J

Seamless cylindrical filter bag is consists of first non-woven fabric, cylindrical cloth, second non-woven fabric and polytetrafluoroethylene microporous membrane are compounded.

GU K, YANG Z, GONG Z, CAO Q, WU J, WANG H, GU Y, WANG Z, ZHANG J