国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC
发明人 ZHANG C（3）
公开年 2020（2）
申请年 2020（3）
专利权人

Preparing low-valent vanadium tail gas from ammonium metavanadate comprises e.g. heating and dissolving crude ammonium metavanadate in water, adding sodium hydroxide, generating ammonia gas, collecting, and adding aqueous ammonia.

ZHANG C

Preparing graphene-based melamine foam by dispersing graphite and stripping agent in solvent, ultrasonically treating and centrifuging, and taking supernatant to obtain graphene dispersion, immersing melamine foam and squeezing.

ZHANG C, ZHANG L, FENG L, GU X

Membrane useful for oil-water separation, is prepared by depositing graphene oxide quantum dots on surface of base membrane using dopamine, performing condensation reaction and obtaining hydrophilic modified layer of graphene oxide.

FAN J, LIU B, LIU Y, ZHAO X, SHI J, XU J, ZHANG C