国家/地区 中国（2） 美国（2） 世界知识产权组织（2）
IPC部 B（6）
IPC大类 B01（6） C02（5） C01（2）
C08（2）
IPC小类 B01D（6）
IPC B01D071/56（6）
发明人
公开年 2021（5）
申请年 2020（6）
专利权人

Preparation of nanofiltration membrane involves coating film casting liquid containing polymer on nonwoven fabric, contacting obtained base film with e.g. aqueous phase solution containing amine monomer to form polyamide functional layer, crosslinking, imidizing, post-treating, and drying.

LIU Z, ZHANG J, HU L, LIANG S, WANG B

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

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

Halloysite nanotube/graphene oxide oil-water separation membrane used for treating marine oil spills, comprises nylon bottom film as support layer and having preset thickness, and halloysite nanotube/graphene oxide layer loaded on film.

LIU E, DU S, ZHANG Z, ZHANG X

Producing polyamide complex membrane using a sulfur-doped nano-carbon material comprises preparing carbon composition by homogeneously mixing a nano-carbon material with sulfur, heating carbon composition, homogenizing, and drying.

SONG P, KIM N, SUK M H, JUNG H W, KIM J, LEE J S

Membrane for treating feed water, comprises interfacially formed polyamide layer on microporous support film, and graphene oxide quantum dots attached to surface of polyamide layer having preset permeate flux and salt rejection performance.

SUN P B, LI J C, KOHLER L