Process for producing rare metal and production system thereof

Details Process for producing rare metal and production system thereof Process for producing rare metal and production system thereof

C - Chemistry, Metallurgy

25

C

C25C 1/22 (2006.01)

Patent

CA 2707146

According to one embodiment , a process for producing rare metals includes the steps of: electrolyzing an electrolytic solution to extract a Re oxide at a cathode; recovering the Re oxide, and electrolyzing the Re oxide in a molten salt electrolyte to extract metallic Re; recovering a Nd containing residue solution; treating the Nd containing residue solution to produce Nd oxide; electrolyzing the Nd oxide in a molten salt electrolyte to extract metallic Nd; recovering a Dy containing residue solution; treating the Dy containing residue solution to produce Dy oxide; and electrolyzing the Dy oxide in a molten salt electrolyte to extract metallic Dy.

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