国家/地区 中国（5）
IPC部 C（6）
IPC大类 C01（6）
IPC小类 C01D（6）
IPC C01D005/02（2） C01G009/02（2） C01G045/10（2）
C02F009/10（2）
发明人
公开年 2018（6）
申请年 2017（3）  2018（3） 
专利权人

Method of treating sodium raffinate wastewater involves carrying out adsorption treatment of clarified sodium chloride wastewater using modified graphene heavy metal adsorbent, adding pullulan to adsorb impurities, and centrifuging.

QIN Y

Recycling waste acid resources useful for preparing graphene oxide, comprises e.g. mixing concentrated sulfuric acid, concentrated phosphoric acid, hydrogen peroxide, concentrated hydrochloric acid, heating, distilling and crystallizing.

YANG X, ZENG Y, LU N, YANG Z

Preparing metal oxide graphene composite wave-absorbing material involves placing graphene oxide, dispersant, water into reaction kettle, controlling temperature, and adding nickel nitrate, cerium nitrate, 4-chlorophenyl zinc iodide.

ZHANG L, DONG J, MA J

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