国家/地区 中国（28） 欧洲专利局（EPO）（4） 世界知识产权组织（4） 美国（2）
IPC部 B（31）
IPC大类 B01（31）
IPC小类 B01D（31）
IPC B01D069/12（31）
发明人 FEI F（2） LI J（2） LI S（2）
LIU J（2） LIU K（2） LIU M（2）
LIU T（2） LIU X（2） PUGH T（2）
SUN K（2） XU J（2） ZHANG X（2）
公开年 2021（20） 2022（10）
申请年 2021（31）
专利权人 BEIJING INST.（2） G2O WATER TE.（2） UNIV TIANJIN.（2）

Preparing high-throughput anti-pollution polyvinylidene fluoride hybrid ultrafiltration membrane used in wastewater, involves adding polyvinylidene fluoride, first catalyst and potassium hydroxide ethanol solution in reaction vessel, stirring uniformly to form mixed solution, stirring, reacting.

CHANG N, YAN B, WANG H

Method for preparing nanomaterial film loaded with microorganisms used in sewage deodorizing device used for deodorization of sewage, comprises e.g. mixing graphene and polyacrylonitrile, electrospinning, weaving, subjecting graphene-polyacrylonitrile-plant fiber film to hydrothermal carbonization.

CAI H, ZHU R, XIANG Y, YAO F, LI C, CAI C

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

Ceramic nanofiltration membrane comprises graphene oxide and polyethyleneimine are alternately coated on surface of ceramic nanofiltration membrane, where graphene oxide and polyethyleneimine allow carboxyl group and amine group to form covalent bond.

KOOK H, CHA M, KIM S, LEE M, PARK C, PARK C H, LEEMINJOO, KIM S 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

Two-sided nano filtration membrane with positive and negative electrical heterogeneity structure useful as magnesium-lithium separation membrane for seawater desalination, comprises base film and upper and lower nano filtration surfaces deposited and assembled at one side of base film.

YE Q, WANG R, ZHU X

Preparing efficient seawater desalination membrane involves taking microporous membrane as surface membrane and polyamide-based membrane as intermediate layer.

LIU G, LI S, WANG L

Preparation of graphene oxide modified composite nano-filtration membrane used for treating heavy metal waste water, involves mixing graphene oxide dispersion liquid and nano-particle dispersion liquid, ultrasonically reacting, immersing membrane in dopamine solution, cleaning and drying.

WANG S, GUO X, LIU J, WANG J, ZHAO Y, JI Z, YUAN J, FEI L, ZHOU J, LI F

Preparing hollow fiber braided tube filter membrane used for waste water reduction, by sequentially fixing photothermal conversion functional material and hydrophobic polymer on outer surface of hollow fiber braided tube using traction immersion modification technology and preparing filter membrane.

ZHANG Q, ZHANG X

Preparing hydrophilic conductive distillation membrane, involves adopting hydrophobic polyimide porous insulating membrane as substrate, activating, drying and depositing hydrophilic conductive reduced graphene oxide membrane layer on membrane surface, and depositing insulating hydrophilic layer.

ZHONG C, SUN F, ZHU Y