国家/地区 中国（4）
IPC部 C（5）
IPC大类 C22（5）
IPC小类 C22B（5）
IPC C22B011/00（5）
发明人
公开年 2022（4）
申请年 2022（5）
专利权人

Recovery of gold involves recovering gold from carbon fines under reducing conditions in alkaline medium having low oxidation reduction potential.

HALIM M A, CHEN J, LAKSHMANAN V I, DASGUPTA S

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