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.
根据一种实施方式,生产稀有
金属的过程包括以下步骤:电解电解液以在阴极上提取Re氧化物;回收Re氧化物,并在熔融盐电解质中电解Re氧化物以提取
金属Re;回收含Nd残留溶液;处理含Nd残留溶液以产生Nd氧化物;在熔融盐电解质中电解Nd氧化物以提取
金属Nd;回收含Dy残留溶液;处理含Dy残留溶液以产生Dy氧化物;并在熔融盐电解质中电解Dy氧化物以提取
金属Dy。