RARE METAL RECOVERY METHOD

PROBLEM TO BE SOLVED: To provide a rare metal recovery method which can recover rare metal without generating halogen gas in a reduction step.SOLUTION: A rare metal recovery method includes: a molten salt immersion step (S11) of immersing rare metal containing alloy in a molten salt; a metallic oxid...

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Hauptverfasser: OMURA TSUNEO, MIZUNO SUEYOSHI, KANEMURA SHOHEI, SHIMIZU TOSHIO, TOGASHI NORIHITO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a rare metal recovery method which can recover rare metal without generating halogen gas in a reduction step.SOLUTION: A rare metal recovery method includes: a molten salt immersion step (S11) of immersing rare metal containing alloy in a molten salt; a metallic oxide addition step (S12) of adding a metallic oxide in the molten salt; and a molten salt extraction step (S13) of extracting the rare metal contained in the rare metal containing alloy as ion to the molten salt.SELECTED DRAWING: Figure 2 【課題】還元工程においてハロゲンガスを発生させることなくレアメタルを回収することが可能なレアメタル回収方法を提供する。【解決手段】レアメタル含有合金を溶融塩に浸漬する溶融塩浸漬工程(S11)と、金属酸化物を溶融塩に添加する金属酸化物添加工程(S12)と、レアメタル含有合金に含まれたレアメタルをイオンにして溶融塩へ抽出する溶融塩抽出工程(S13)と、を備える。【選択図】 図2