国家/地区 世界知识产权组织（5）
IPC部 B（5）
IPC大类 B01（5） C01（2）
IPC小类 B01D（5）
IPC B01D071/68（5）
发明人
公开年 2021（5）
申请年 2021（3） 
专利权人

Synthesis of graphene oxide used for manufacturing membrane, involves mixing sulfuric acid and phosphoric acid, adding graphite powder, potassium permanganate and hydrogen peroxide, cooling mixture, diluting mixture with hydrochloric acid solution, and centrifuging.

ALKHOUZAAM A A, QIBLAWEY H

Composite membrane used for separating gas from gas mixture, comprises selective layer comprising polymeric matrix comprising amine polymer, graphene oxide nanofiller, and mobile carrier chosen from ionic liquid and amino acid salt, coated on support.

DENG L, JANAKIRAM S, ANSALONI L, DENG Y L, ANSARONI L

Gas separation membrane element used in gas manufacture, comprises central tube for accumulating permeated gas, and gas separation membrane spirally surrounded by tube and comprising porous support film having arithmetic-mean surface roughness and separation functional layer containing graphene.

TOKUYAMA T, IIZUKA R, YAMADA H

Extracting lithium from aqueous lithium source, comprises removing dissolved calcium ions and/or dissolved magnesium ions by nanofiltration, removing water by reverse osmosis, and electrochemically extracting dissolved lithium ions.

ALYOUSEF Y M, ALRASHEED R, AL JILIL S, HIPPAUF F, ABENDROTH T, ALTHUES H, KASKEL S

Conductive film comprises porous base layer film, porous intermediate transition layer film made up of graphene and carboxylated multi-wall carbon nanotubes and porous conductive layer film stacked in sequence.

SUN F, YANG J, DONG W, ZHAO L, XING D, YANG S, SONG Z, LI J