国家/地区 中国（9） 美国（4） 欧洲专利局（EPO）（3） 印度（3） 日本（3） 韩国（3） 世界知识产权组织（3） 巴西（2） 加拿大（2）
IPC部 B（11）
IPC大类 B01（11） C01（11） H01（2）
IPC小类 B01D（11）
IPC C01B032/184（11）
发明人
公开年 2021（8） 2020（3）
申请年 2020（11）
专利权人

Preparing graphene based on mixed inorganic acid solvent by e.g. pre-treating raw material graphite powder, preparing mixed inorganic acid solvent, performing graphene peeling treatment, and extracting graphene product from graphene mixture.

QIAN X, MA C

Production of graphene-carbon nanotube composite used for e.g. electrode material, involves adding reducing agent to graphene oxide dispersion and reducing by heating, acid treating carbon nanotubes, dispersing reduced graphene and acid-treated carbon nanotubes in solvent, and spray-drying.

YOO H, HAN S Y

Membrane e.g. graphene membrane for use in filter and filtration, has pores that includes relatively large and small pores, filler particles are lodged within relatively large pores and graphene platelets fill relatively small pores.

OGUNTUASE N

Hemmeron graphene production device with defoaming function comprises e.g. cylindrical stirring barrel arranged vertically, and sealing cover horizontally covered on top of stirring barrel and hermetically connected with stirring barrel.

GUO M

Hybrid graphene material used for manufacturing filters of substances from any tobacco product, preferably cigarettes, industrial processes, internal combustion engines or chemical processes, comprises micronized graphite.

BENSE CANDELA T, BANCHERO ISASMENDI M M, UMPIERREZ VAZQUEZ E F, RUFENER C, VILLANUEVA J P, PARDO H, FACCIO R, MOMBRU A, BENSE C T, BANCHERO I M M, UMPIERREZ V E F, BENSE C T S, CANDELA T B, ISASMENDI M M B, VAZQUEZ E F U, UMPIERREZ VIZQUEZ E F, UFENER C, UMPIERREZ VAZQUEZ E, DRA. PARDO H, DR. FACCIO R, DR. MOMBRU A

Preparing graphene porous membrane by thermally reducing graphene oxide slurry, thermally-reducing, dispersing HT-graphene oxide in solvent, adding hydrogen peroxide, purifying product, and dispersing FL-graphene oxide powder in solvent.

OU J, YU H, ZHOU H, CHENG Y, REN B, CHEN G, YAO H, YI Q, XIE H, CHEN K

Reaction kettle for producing graphene, comprises reaction kettle shell, sealing upper cover, threaded groove, countersunk hole, bolt, pressure gauge and sealing material injecting pipe, where sealing cover is covered on upper end of reaction kettle shell.

LIANG Z, DENG Y, ZHANG K

Making graphene oxide from kish graphite comprises e.g. provision of kish graphite, pre-treating kish graphite, intercalation graphite with persulfate salt and acid, expansion of intercalated graphite and oxidatizing expanded kish graphite.

VU T T, SUAREZ SANCHEZ R, SUAREZ S R, VU T, SANCHEZ R S

Preparing graphene air filter core in large quantity, comprises e.g. mixing graphite and potassium permanganate, adding concentrated sulfuric acid and concentrated phosphoric acid, and reacting under condition of vacuum heating distillation.

TANG B, LI T, MEI D, DENG M, LUO Z, QIAO G, ZHANG B, XU W, MU Z, LIN Y, DENG J, XIONG R, MENG L, YE C

Filter membrane prepared by co-growing graphene by copper plating on copper mesh, useful in filter for purification equipment, comprises copper mesh, modified graphene solution, electroless copper plating solution and acid-base regulator.

WANG Q, LIU S