| abstract |
An object of the present invention is to provide a method for efficiently producing a metal from a metal mixed solution containing a metal group A comprising at least one of cobalt, nickel and lithium and a metal group B comprising at least one of copper, zinc, manganese, calcium, To separate the metal group (B). Cobalt, nickel and lithium, and a metal group B comprising at least one of copper, zinc, manganese, calcium, aluminum and iron, a phosphoric acid ester-based extracting agent (Hereinafter referred to as " first extracting agent ") and a oxime-based extracting agent (hereinafter referred to as " second extracting agent "), And separating the metal in the metal mixed solution. |