公开(公告)号：EP4354564A1

公开(公告)日：2024-04-17

申请号：EP23178094.1

申请日：2023-06-07

申请人： Hunan Province Yinfeng New Energy Co., Ltd

发明人： WU, Xiongwei ,  XU, Hui ,  XIE, Hao ,  LV, Shanguang ,  WU, Xuewen ,  FU, Na

IPC分类号： H01M8/18

CPC分类号： H01M8/188 ,  H01M2300/000220130101

摘要： The present disclosure provides a vanadium electrolyte, a preparation method and use thereof. The method includes: adding sulfuric acid into vanadium-containing ore, and stirring to obtain a mixture; curing the mixture to obtain a clinker; leaching the clinker with water to obtain a vanadium-containing leaching solution; adding a first impurity-removing agent into the vanadium-containing leaching solution to obtain a first purified solution; adding an oxidizing agent, a ferric phosphate dihydrate seed crystal and a second impurity-removing agent into the first purified solution to obtain a second purified solution; adding a reducing agent and a flocculating agent into the second purified solution, and filtering a resultant solution to obtain a filtered solution; mixing the filtered solution with an extraction liquid to obtain a vanadium-supported organic phase; stripping the vanadium-supported organic phase to obtain a stripping liquid; and removing an organic phase from the stripping liquid to obtain the vanadium electrolyte.