国家/地区 中国（3）
IPC部 C（3）
IPC大类 C22（3）
IPC小类 C22B（3）
IPC C22B009/00（2）
发明人 YANG Z（2） ZHANG J（2）
公开年 2023（3）
申请年 2023（3）
专利权人

Recycling nickel cobalt catalyst comprises soaking waste catalyst with nickel and cobalt in sulfuric acid, adding chitosan-graphene porous adsorption material, adsorbing amine, heating, adsorbing nickel-cobalt ions, replacing cobalt ions adsorbed by nickel ions, and separating nickel-cobalt ions.

ZHANG J, XU S, YANG Z, ZHOU S, XU Y

Preparing nut with composite coating on its surface comprises ultrasonically dispersing modified fluorinated graphene, titanium boride-silicon dioxide, and xylene, adding mixed solution, melting copper, aluminum, chromium, iron, manganese, nickel, silicon and zinc, cooling, and heat treating.

YANG Z, GAO F, JIANG X

Preparing graphene enhanced valve comprises e.g. determining main body material and production type of valve, selecting raw materials, smelting, primary and repeated refining, mold casting, sand blasting, cleaning, grinding, heating, annealing and allowing to stand.

DU J, SONG T, REN H, ZHANG J, YUE Y, YE Z