国家/地区 中国（3）
IPC部 C（4）
IPC大类 C01（4）
IPC小类 C01D（4）
IPC
发明人
公开年 2018（3）
申请年 2017（4）
专利权人

Purifying lithium-containing solutions for producing battery grade lithium chemicals by passing lithium-containing solution to purification steps which use titanate adsorbent and/or graphene-based filter medium, and an electrolysis step.

REED C J

Treating waste liquid produced during preparation of graphene oxide comprises adding neutralizing agent to waste liquid, when the pH is raised, and adding precipitating agent.

ZHANG Y, ZHANG X, LIU Y, MIAO X, CHEN S, CHEN Y, WANG W, CHENG J, LI D, LIN Z, LIN S, FENG W, LI X, XUE X

Graphene production wastewater processing system has pre-processing unit, filter unit with fine sand filter, and evaporation crystallization unit with sodium sulfate evaporated crystallizer and manganese sulfate evaporated crystallizer.

WU H, ZHAO K, ZHANG H, YANG J, GUO L

Preparing graphene comprises e.g. mixing halide salt particles and expanded graphite worm, stirring in a stirrer for complete contact, removing halide salt, dissolving in water, filtering, washing, ultrasonic stripping and drying.

ZHANG J