国家/地区 中国（17）
IPC部 B（17） C（7）
IPC大类 B01（17） C02（6）
IPC小类 B01D（17）
IPC B01D071/68（17）
发明人 YU H（2）
公开年 2021（8） 2022（7） 2023（2）
申请年 2021（17）
专利权人

Preparing reverse osmosis membrane useful for desalination of boron sea water, comprises e.g. contacting base film with polyamine monomer solution, obtaining polyamide layer, heating, immersing in diethanolamine solution, immersing reverse in carboxy activator solution, coating and post-treating.

LIANG S, HU L, XIAO J, LIU G, YANG X

Graphene separation film used in total organic carbon analyzer for testing and monitoring of purity of drinking water and process water, comprises support layer and separation layer, which is double-layer graphene film with nanopores.

ZHANG S, SUN J, YAO A, HOU D, ZHANG D, WANG L

Porous separation membrane with adsorption performance used in e.g. water pollution monitoring, comprises polymer layer and optional support layer, where surface and interior of polymer layer are three-dimensional fiber structures and adsorbent is dispersed in polymer layer.

YU H, ZHANG Y, PAN G, ZHU X, LIU Y

Mop cleaning bucket for rinsing and de-drying clean water by circulating and filtering sewage, has water column for drawing water from water purification area to clean mop cloth to form sewage that flows to water outlet through inclined surface.

WU C

Manufacturing hollow fiber film used as polysulfone film, involves preparing film main unit, solvent, pore-forming agent, heating, stirring to form material liquid, and processing material liquid through conveying pump to spinning plate.

PENG Z, FANG L, CHANG Z, LIANG E

Preparing multilayer polyamide film composite reverse osmosis membrane, comprises e.g. preparing polysulfone-based membrane, preparing chitosan complexed silver antibacterial agent, and immersing film containing top polyamide layer in protective layer modification solution.

ZHONG C, SUN F, ZHU Y

Amphoteric ion-graphene oxide film used in selective gas separation, specifically for carbon dioxide separation, comprises graphene oxide, zwitter ions and an additive.

MA Y, YAN Z, LI Y

Reverse osmosis membrane based on polysulfone material, comprises support frame that is polyester knitted fabric after stiffening, and dense layer that is polyamide layer doped with graphene oxide.

WANG Z, LI Z, PAN P

Preparing conductive polyethersulfone separation membrane by heating styrene-maleic acid, distilled water and sodium hydroxide, adding conductive nanoparticles and styrene-maleic acid salt solution to distilled water, grinding conductive nanoparticles, and preparing sodium hydroxide solution.

WU X, SHAO H, QIN S, CHANG J, LEI T

Nano-silver composite treatment agent useful for improving anti-pollution ability of membrane bioreactor membrane, comprises nano-silver material prepared form e.g. silver nitrate, L-ascorbic acid and polyvinylpyrrolidone, and hydrophilic polymer prepared form e.g. polysulfone and graphene oxide.

ZHU H, WANG K, XIA W, DONG P, LIU A, SUN X