国家/地区 中国（6） 世界知识产权组织（2）
IPC部 C（7）
IPC大类 C02（7） C22（7） B01（6）
IPC小类 C02F（7）
IPC C02F001/28（7）
发明人
公开年 2021（4）
申请年 2021（4） 
专利权人

Adsorbent useful for recycling noble metal, comprises nitrogen-doped graphene-silicon dioxide hybrid material, where the nitrogen-doped graphene- silicon dioxide hybrid material includes nitrogen doped-silicon dioxide graphene material.

ZHANG L, LIU J

Preparing amino-rich polyacrylonitrile-based nanocomposite fiber film used for removing and recycling gold, involves mixing N,N dimethylformamide dispersion of graphene oxide and the N,N-dimethylformamide solution of hyperbranched polyethyleneimine and performing amidation reaction.

ZHONG X, MENG W, YANG H, SHI X, LI X, LI T, MA Y

Preparing carbon-based lithium adsorption electrode for liquid lithium resource extraction comprises adding the lithium ion sieve adsorption powder, conductive filler and carbon precursor into polymer solution, mixing, coating on electrode supporting material and drying.

WU Z, NIE G, YE X, LIU Z, LUO Q, LIU H, LI J, DONG M

Preparation of Mxene membrane adsorption material based on polyamidoxime by treating raw materials with hydrogen fluoride, soaking in dimethylsulfoxide solution, soaking film in polyamidoxime solution, vacuum filtering, and drying.

WUMING B, YE H, LIU S, MA L, YAO J

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

Graphene composition useful for adsorbing gold ion in gold-containing solution comprises thiourea graphene zeolite.

HSI H, CHEN Y, CHEN T, TSAI C, XI X

Product useful for binding heavy metals, preferably selenium in wastewater, comprises graphene oxide nano-platelets.

FU Y, WANG J, LIU Q, ZENG H