METAL EXTRACTION AGENT AND METHOD FOR RECOVERING METAL

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PROBLEM TO BE SOLVED : To provide a means of selectively and easily extracting indium or rare earth metals. SOLUTION : Provided is a metal extraction agent containing a dialkylaminocarboxylic acid compound represented by formula I (R1 and R2 are mutually independently, substituted/unsubstituted straight-chain/branched chain C1-18 alkyl, C2-18 alkenyl or C2-18 alkynyl or substituted/unsubstituted straight-chain/branched-chain C7-18 arylalkyl or C8-18 arylalkenyl). SELECTED DRAWING : None COPYRIGHT : (C)2016, JPO&INPIT