专利检索 ap:("JX Metals Corporation") AND inv:"MIKI,Yuzuru" 第 1 页

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发明公开
METHOD FOR PRODUCING COBALT SOLUTION, METHOD FOR PRODUCING COBALT SALT, METHOD FOR PRODUCING NICKEL SOLUTION, AND METHOD FOR PRODUCING NICKEL SALT 审中-实审

公开(公告)号：EP4417721A1

公开(公告)日：2024-08-21

申请号：EP22889658.5

申请日：2022-09-12

申请人： JX Metals Corporation

发明人： ARIYOSHI,Hirotaka , ABE,Hiroshi , MIKI,Yuzuru

IPC分类号： C22B23/00 , B09B3/00 , B09B3/70 , C01G51/00 , C01G53/00 , C22B3/04 , C22B3/32 , C22B3/38 , C22B7/00 , H01M10/54

CPC分类号： Y02P10/20 , Y02W30/84 , B09B3/70 , B09B3/00 , C01G51/00 , C01G53/00 , H01M10/54 , C22B3/04 , C22B3/32 , C22B3/38 , C22B7/00 , C22B23/00

摘要： A method for producing a cobalt solution by removing magnesium ions from a cobalt-containing solution obtained by subjecting battery powder resulting from lithium ion battery waste to at least a leaching process, the cobalt-containing solution containing magnesium ions, wherein the method includes: a magnesium separation step of extracting cobalt ions from the cobalt-containing solution using a solvent containing a carboxylic acid-based extracting agent to separate the magnesium ions, and then stripping the cobalt ions from the solvent to obtain the cobalt solution as a stripped solution.