国家/地区 中国（4）
IPC部 C（4）
IPC大类 C01（4）
IPC小类 C01G（4） C01D（3）
IPC C01G045/10（4）
发明人
公开年 2018（2） 2021（2）
申请年
专利权人

Deeply removing molybdenum from manganese sulfate solution using electrolytic manganese dioxide, by heating manganese sulfate solution for deep purification, adding sodium hydroxide, introducing compressed air, adding graphene and filtering.

LUO B, CHEN Q, TU Z, QIN L, HUANG C, LIANG C

Recovering lithium precursor by preparing cathode active material mixture containing lithium composite oxide, forming pre-precursor mixture including lithium oxide by reacting cathode active material mixture and separating by washing.

HONG S J, KIM J M, SON S R, HA D W, HONGSEOKJOON, KIM J, SOHN S, HE D, SUN C, HONG X

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

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