国家/地区 中国（15）
IPC部 B（15） C（9）
IPC大类 B01（15） C02（8）
IPC小类 B01D（15）
IPC B01D071/56（15）
发明人 ZHANG Y（3） ZHAO Y（3） LIU J（2）
LIU W（2） SHEN W（2） XU Z（2）
YANG L（2）
公开年 2022（15）
申请年 2022（10）  2021（4） 
专利权人 HUNAN YUTUO .（3）

Improving separability of reverse osmosis membrane, comprises using polyamide membrane modified by graphene oxide to separate oxidized substances in water to enhance water flux, chlorine resistance, and anti-pollution performance of polyamide membrane.

SHEN W, HE H, XU Z, YANG L, ZHANG Y

Preparation method for improving chlorine resistance of reverse osmosis membrane comprises using graphene oxide perform material modification of polyamide membrane, reducing pore size, porosity, hydrophilicity, and surface roughness of polyamide membrane modified by graphene oxide.

WANG C, XU Z, LIU W, YANG L, ZHANG Y

Graphene oxide filled mixed substrate reverse osmosis membrane used in water purification and separation process of film, chlorine resistance and pollution resistance, comprises graphene oxide embedded in polyamide layer.

LUO Y, LIU W, SHEN W, XU H, ZHANG Y

High-performance nano-filtration membrane comprises graphene quantum dot polyamide composite nano-filtration membrane as base membrane, arginine as modified modification molecule, and aqueous solution soaked in aqueous solution for hydrothermal treatment to perform modification.

WANG Z, LI W, LIU J, SU Y

Composite film useful in separating and selecting magnesium and lithium in high-magnesium-lithium ratio salt lake brine, comprises ultrafiltration support layer and modified polyamide layer.

LI Z, WANG H, PENG Z, ZHAO Y, LI Y, WANG M

Preparing perfluoropolymer-based composite nanofiltration membrane comprises respectively spinning first spinning solution made of water-soluble polymer and perfluoropolymer dispersion emulsion, and second spinning solution made of co-spinning polymer to obtain flat film and sintering.

SHU J, XIE W, WANG Q, JIN N, DI Z, YANG H, ZHAO Y, HUANG Y

Preparing ultra-hydrophilic-underwater ultra-oleophobic graphene hydrogel/stainless steel mesh composite oil-water separation membrane, comprises immersing stainless steel mesh in detergent water, absolute ethanol and deionized water, placing in oven for in-situ polymerization and freeze-drying.

DAI Z, NI H, LI R, TIAN N

Porous polymeric membrane useful for removing impurities from liquid compositions e.g. alcohols and ammonium hydroxide comprises a polymer having mixed in it a carbonaceous material.

MIR A A, JABER J A, PATEL R B, BOUDREAU A, KALYANI V

Preparing modified high-flux reverse osmosis membrane based on multi-dimensional graphene oxide used in sea water desalination technology, involves adding hydroxyl-containing diamine to graphene oxide dispersion liquid, and vacuum filtering to polysulfone ultrafiltration membrane.

LI X, SU T, LIU L

polyethersulfone composite microporous nanofiltration membrane used for separating various organic material and inorganic salts with different valence states, involves performing nitration modification on polyether sulfone.

WU J, ZHOU Z