国家/地区 中国（7）
IPC部 B（7） C（4）
IPC大类 B01（7） C02（4）
IPC小类 B01D（7）
IPC B01D067/00（7）
发明人
公开年 2023（7）
申请年 2021（3）  2022（3） 
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

Anti-pollution ultrafiltration membrane useful in process of filtering solution containing organic matter, comprises e.g. ultrafiltration base membrane and modified layer, where ultrafiltration base membrane is polyacrylonitrile and/or polyvinylidene fluoride.

GUO H, ZHANG M, HONG Z, MA H, YU T, XIE Q

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

Lead ion selective adsorption polyacrylonitrile ultrafiltration membrane useful in field of lead ion wastewater treatment, comprises support layer and polyacrylonitrile separation layer (including nanoparticles surface-modified by phosphoramidate compound).

YU H, ZHANG Y, PAN G, LIU Y, ZHAO M

Composite pervaporation desalting film comprises separating layer with separating function and organic porous base film layer for supporting.

YU Z, ZENG Z, TANG X

Preparing tubular membrane used in water treatment, involves mixing polymer material with additives and solvents, defoaming to obtain filter separation layer casting solution, spinning filter separation film liquid on core rod by electrostatic spinning, melting thermoplastic resin, thermally shaping.

ZHANG H, XU X, ZHAN Y

Composite film useful for purifying dye wastewater comprises graphene oxide interspersed between interlaced stacked polyacrylonitrile fibers to three-dimensional network support structure.

ZHANG J, LIU L, DING H, WEI D, CHEN D, SUN Q, NIE H