文件大小:75K
PROBLEM TO BE SOLVED : To provide an element separation and recovery method by which selectivity and recovery efficiency of an element such as valuable metal, can be considerably improved, a substance used for recovery of the element can be reused and a chelating agent is not required to be used even when a metal is separated and recovered as the element. SOLUTION : Zonyl (R) FSA and THF are added into a vessel 1 in which solution 2 containing rare-earth metal RE being a target substance is contained. Successively, pH of the solution 2 is set to be about pH 4 of
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