国家/地区 中国（6）
IPC部 C（7）
IPC大类 C22（7）
IPC小类 C22B（7） B01J（3）
IPC C22B059/00（7）
发明人 LI Z（2） LIU Y（2） ZHANG Y（2）
公开年 2021（2）
申请年 2018（2）  2021（2） 
专利权人

Recovering elemental rare earth metal used in e.g. magnet, involves placing rare earth-containing material comprising rare earth metal in reaction solution containing reducing agent, reducing rare earth metal to form cations of reducing agent, and reducing cations of reducing agent.

BAEK D L, FOX R V, CASE M E

Preparing three-dimensional graphene oxide composite material useful in recovery of rare earth ions in aqueous solutions, comprises e.g. preparing graphene oxide solution, adding 2-amino benzothiazole and performing self-assembling reaction.

YU J, LIAO C, LIU Y, CHEN X

Preparing chitosan-based gadolinium ion imprinted material, comprises e.g. taking carbon nano-tube as carrier material, performing surface amination modification, crosslinking with imprinted chitosan, and reacting with graphene oxide.

ZHENG X, BIAN T, ZHANG Y, LI Z

Polyamine-functionalized three-dimensional graphene-based aerogel for separating thorium and rare earth elements, is obtained by hydrothermally reacting graphene oxide and polyamine reducing agent.

BAI R, ZHANG Y, YANG F

Preparation of graphene oxide doped mesoporous silicon film for selectively adsorbing rare earth elements, involves preparing nanocrystalline cellulose, dispersing, reacting with glucose, graphene oxide, tetraethyl silicate, sulfuric acid.

LIU E, ZHAG F, YAN Y

Extraction and separation method involves adsorbing organic phase on graphene aerogel to adsorption saturation, and removing organic phase of surface of graphene aerogel to obtain graphene aerogel fixed organic phase.

ZHANG L, CHEN M, LI Z, LI J

Method for adsorbing and separating graphene oxide colloid, involves selecting natural crystalline flake graphite, putting in dialysis bag, sealing, putting in rare earth ion water solution, oscillating and adding acid solution.

WANG L, LI Y, LIU Y, CHEN W, ZHUO M