国家/地区 中国（9） 世界知识产权组织（4） 欧洲专利局（EPO）（3） 日本（2） 美国（2）
IPC部 B（11）
IPC大类 B01（11） C02（11） B60（2）
C08（2）
IPC小类 B01D（11）
IPC C02F001/40（11）
发明人 ZHANG X（3） FEI F（2） HAN Z（2）
LIU K（2） PUGH T（2） WANG X（2）
公开年 2021（11）
申请年 2021（7）  2020（3） 
专利权人 CHINA PETROL.（2） G2O WATER TE.（2）

Preparation method of graphene-based sponge used for treating sewage, involves performing ultrasonic treatment on the mixture of the graphene oxide dispersion and polyurethane sponge, heating.

WU J, LI C, SONG S, HUO S, LI K, WANG Y

Membrane for pressure-assisted separation of oil and water used in drainage device and fuel tank, comprises at least partially crosslinked active layer arranged on portion(s) of porous substrate layer, and comprising superhydrophilic agent.

LIU K, FEI F, PUGH T

Separation membrane for oil and water separation in fuel tanks, comprises porous substrate layer and active layer comprising hydrophilic agent and superhydrophilic agents.

LIU K, FEI F, PUGH T

Preparing graphene oxide/carbon nanotube composite filter membrane for oil-water separation comprises e.g. mixing graphene oxide and carbon nanotubes with distilled water, preparing graphene oxide and multi-walled carbon nanotubes mixed solution and designing vacuum filtration device.

LI W, YUAN R, CHEN W

Face mask e.g. surgical face mask, comprises mask component to cover wearer's mouth and nose, and fastener engaging with mask component comprising air-permeable outer layer, inner layer located on inner side of mask component, and graphene layer, where fastener connects mask component to wearer.

ZHAMU A, JANG B Z, ZHANG B

Hydrophobic magnetic porous material useful for treating or absorbing hydrophobic material, prepared by e.g. modifying magnetic nanoparticles coated with protein shell into porous substrate and performing hydrophobic treatment.

YU J, CAO C, ZHANG T, PAN Y

Three-dimensional printing technology for production of sewage treatment filter membranes involves establishing multi-porous gradient cylindrical model on three-dimensional Max software, and e.g. exporting stereolithography format.

FAN Z, WANG Z, HAN Z, ZHANG X, LIANG J

Composite net film for oil-water separation and/or sewage treatment comprises metal net base material modified with functional material including super-hydrophilic-oleophobic material, or crosslinked material and non-crosslinked material.

XU J, FU Y, AI L

Halloysite nanotube/graphene oxide oil-water separation membrane used for treating marine oil spills, comprises nylon bottom film as support layer and having preset thickness, and halloysite nanotube/graphene oxide layer loaded on film.

LIU E, DU S, ZHANG Z, ZHANG X

Preparation of graphene-polyurethane composite filter membrane for separating oil and water, involves adding dopamine hydrochloride to tris-hydrochloric acid buffer solution, stirring, centrifuging, collecting precipitate, and drying.

WANG X, HAN Z, SONG C, XIU C, WU X, ZHANG Y, CAO J