国家/地区 中国（10）
IPC部 C（10）
IPC大类 C22（10） B01（4） C02（3）
IPC小类 C22B（10）
IPC C22B011/00（10）
发明人 LI F（2） LI H（2）
公开年 2022（4） 2021（3）
申请年 2022（4）  2021（3） 
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

Synthesizing noble metal material by solvent thermal method useful in e.g. catalysis, electron, optical imaging, information storage and medicine, comprises mixing metal precursor solution with carrier dispersion solution, obtaining redox reaction solution, and ultrasonically mixing and dispersing.

LIU H, LI H, GONG X, WEI H

Extracting silver from waste solar battery assembly comprises e.g. manually disassembling and separating each component of waste solar panel, performing primary classification and recycling, collecting waste solar silicon plate, heating, removing ethylene-vinyl acetate, and reducing silver ion.

HUANG Q, LI F, YUAN W, HUANG M

Preparing MXene/GO/NbFeB hydrogel used as adsorption-reducing agent, involves forming MXene aqueous solution in aqueous solution, adding graphene oxide into MXene aqueous solution to obtain mixed solution, which further ultrasonically mixed and placed mixture in water bath for multiple hours.

REN J, MA J

Method for recovering gold from solution containing gold ions of metal elements in electronic waste, involves carrying out mixed reaction with graphene oxide dispersion liquid and reducing agent, dispersing product in solvent to obtain dispersion solution, and calcining.

CHENG H, LI F, SU Y

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

Photocatalytic selective metal dissolving agent comprises cyanide compound solution containing photocatalyst.

BIAN Z, CHEN Y, XU M, WEN J, WAN Y, LI H

Enriching and separating gold, platinum and palladium comprises using graphene oxide, platinum and palladium by controlling pH of solution and directly using sunlight.

ZHANG Y, YANG A

Extraction of gold/silver, involves preparing gold/silver cyanide complex solution using gold/silver standard solution and cyanide solution, and placing oxidized graphene in complex solution to adsorb gold/silver cyanide complex.

SONG S, JIA F, YANG L