国家/地区 中国（8）
IPC部 C（9）
IPC大类 C22（9） B01（3） B09（2）
C02（2） C25（2） H01（2）
IPC小类 C22B（9）
IPC C22B007/00（9）
发明人
公开年 2022（6） 2023（3）
申请年 2022（9）
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

Extracting lithium from salt lake brine comprises using electrodialysis device and lead as anode, completing after reaction, turning over positive and negative poles, keeping mixed solution of sulfate and chloride in cathode chamber unchanged, and recovering lithium-intercalated ion sieve.

LIU X, ZHAO Z, XU W, HE L

Waste lithium-ion battery recycling method based on selective enhanced crushing method, involves extracting metal and its maintenance by supercritical fluid/subcritical fluid, and using supercritical fluid/subcritical fluid extraction in situ preparation graphene from anode material.

SHI H, LU Y

Composite film useful in separating and selecting magnesium and lithium in high-magnesium-lithium ratio salt lake brine, comprises ultrafiltration support layer and modified polyamide layer.

LI Z, WANG H, PENG Z, ZHAO Y, LI Y, WANG M

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

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

Comprehensively recovering and treating ternary power battery material comprises e.g. adding sodium lauryl sulfate into sodium alginate aqueous solution, stirring, adding modified graphene, ball-milling, vacuum smelting, preparing aluminum foil melt, and mixing sulfuric acid and lithium sulfate.

GAO Z, DUAN Y, YANG X

Recycling processing of waste lead paste of lead-acid battery applied to e.g. automobile application, involves uniformly coating obtained slurry on negative electrode in inert atmosphere, carrying out electrolytic reaction with solution as electrolyte solution, and obtaining metal lead.

RAO Y, FU F, HUANG Y, WU L, ZHOU S, ZHANG J, LI J, YU J, CAO J