国家/地区 中国（7）
IPC部 C（7） B（3）
IPC大类 C01（7）
IPC小类 C01D（7）
IPC C01D005/00（7）
发明人
公开年 2016（2）
申请年 2021（2） 
专利权人

Zero-discharge treatment method for full resource utilization of waste acid in graphene production by e.g. adjusting supernatant pH to neutral by adding sulfuric acid, evaporating and concentrating by mechanical vapor recompression, crystallizing to obtain potassium sulfate, recycling water.

FENG X, FENG J, XIAO L, FENG S

Preparing salt capable of controlling the solid-liquid ratio of salt product involves introducing the brine into evaporation tank for evaporation treatment and crystallizing after evaporation to prepare salt slurry, and spraying reinforcing film on inner wall of centrifuge,.

CAO S, MA C, PEI G

Graphene quantum dot composite material for use in lead-acid battery, is prepared by mixing carbon source with solid carrier particles, and reacting at specified temperature, or performing microwave treatment.

WU J, HE X, TIE S, HE K

Preparing graphene oxide nano-volume comprises preparing graphene oxide sponge by liquid-phase stripping method and freeze-drying method, ultrasonically dispersing in deionized water and acidifying carbon nanotubes.

WU X, YAO Y, QIN W, LU S, LI Y

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

Treating waste water in graphene production process involves oxidizing graphite, purifying graphite, concentrating graphite, separating solid-liquid and performing multi-effect evaporation to obtain final product.

BAO N, LI C, JIANG F, SHEN L, SHI Y

Synthesis of graphene derivatives and functional materials used in e.g. transistors, sensors, actuators, pharmaceutical, information displays and semiconductor comprises forming refluxed solution of starting material and additive.

TANIMOLA O W