国家/地区 中国（19） 美国（6） 世界知识产权组织（5） 欧洲专利局（EPO）（2） 印度（2） 韩国（2） 台湾（2）
IPC部 B（27） C（27） E（3）
D（2）
IPC大类 B01（27） C02（27） C01（5）
C08（5） E21（2）
IPC小类 B01D（27）
IPC C02F001/44（27）
发明人 ZHANG X（4） LIU Y（3） JAMISON D E（2）
LI S（2） PEARL W C（2） SHUMWAY W W（2）
ZHANG H（2）
公开年 2021（27）
申请年 2020（27）
专利权人 HALLIBURTON .（2）

Preparing sericin doped graphene oxide membrane for forward osmosis by isolating graphene oxide flakes by centrifuging, collecting supernatant, pouring sericin solution on nylon support, pouring medium graphene oxide flake dispersion under vacuum pressure, heating, immersing in water and drying.

DEKA P, VERMA V K, SUBBIAH S, RAIDONGIA K, KEJRIWAL R

System used for treatment of slop water recovered from wellbore operation, comprises treatment unit comprising inlet, filtration medium comprising particulate pack partially coated with zwitterionic polyelectrolyte, and arranged to separate portions of slop water stream comprising water, and outlet.

JAMISON D E, SHUMWAY W W, PEARL W C

Fluid treatment system for treating fracturing fluid or drilling mud, has first filtration medium having first outlet that is provided on first side of first filtration medium, and second outlet that is provided on second side of first filtration medium to opposite first side.

JAMISON D E, SHUMWAY W W, PEARL W C

Preparation of composite modified film used in water treatment, involves soaking polyvinylidene fluoride film in solution of tris(hydroxymethyl)aminomethane hydrochloride and diaminoguanidine, modifying by oxidation deposition, and immersing film in aminated graphene oxide solution and grafting.

LIN Z, CHEN Z, YOU W, ZHANG B, WANG Y, LIN H, LI S, HUANG Y, LI D

Preparing layer-by-layer covalent cross-linked graphene oxide film useful in treating water, comprises e.g. assembling polyacrylonitrile film and graphene oxide layer-by-layer using symmetrical diamine substance as cross-linking agent.

ZHAO X, LI H, QI H, TIAN Y

Preparation of graphene oxide-iron composite film for removing pollutants from wastewater, involves mixing ferrous ion salt with graphene oxide aqueous solution, and pouring obtained mixed solution to air extraction device.

CHEN W, LIN C

Three-dimensional printing technology for production of sewage treatment filter membranes involves establishing multi-porous gradient cylindrical model on three-dimensional Max software, and e.g. exporting stereolithography format.

FAN Z, WANG Z, HAN Z, ZHANG X, LIANG J

Preparing graphene oxide film for sieving and separating aqueous solutions of high-valence metal ions, involves adding graphene oxide suspension, vortexing and sonicating, then allowing to stand still.

FANG H

Nanoporous membrane used in filter, comprises two-dimensional material permeated by pores which are blocked by polymer derived from monomer and comprising population of pores having average pore diameter.

KIDAMBI P R, CHENG P

Composite filter membrane comprises base membrane, and partially reduced graphene oxide deposited on base membrane, and has preset water contact angle.

HUANG Z, LIN X, LIU Y