| 简介 |
PROBLEM TO BE SOLVED : To provide a method for recovering a valuable metal, particularly a rare earth metal, which reduces a carbon content in the metal without substantially oxidizing the valuable metal.
SOLUTION : The method for recovering the valuable metal comprises separating a valuable resource consisting mainly of a negative electrode while containing 12 wt.% or less a positive electrode, from scrap containing the valuable metals, and heating the separated valuable resource mainly consisting of the negative electrode at 600°C or higher in a hydrogen gas atmosphere to remove carbon. |
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