国家/地区 中国（4）
IPC部 C（4）
IPC大类 C22（4）
IPC小类 C22B（4）
IPC C22B007/00（2） C25C001/20（2）
发明人
公开年 2021（4）
申请年 2020（4）
专利权人

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

Recycling metal in waste circuit board comprises e.g. gradually heating and separating according to metal melting point to obtain gold, palladium, platinum and rhodium powder after placing solid mixture in flexible carbon felt electrolysis.

LAI Z, ZHONG Z, WANG J, ZHANG X, ZHONG Y, LAI Y, CHEN L

Treating electrolyte by feeding electrolyte containing two metal ions into electrochemical polishing reactor with anode and high-surface area cathode and controlling electrode potential at high-surface area cathode to reduce first metal ion.

MOHANTA S, REILL J, TAECKER B S, HOKE J, DOUGHERTY B J, LIAO J, LIL J, TACKER B S, HAWK J, DIRTY B J, LAYER J

Preparing metal vanadium comprises heating and dehydrating vanadium source under vacuum condition, carrying out reduction reaction in molten salt medium and inert gas atmosphere, washing and drying the material.

ZHANG N, LI L, ZHANG S, WANG N, LI J, WU C