Invention Grant
- Patent Title: Process for producing rare metal and production system thereof
- Patent Title (中): 生产稀土金属的方法及其生产系统
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Application No.: US12813002Application Date: 2010-06-10
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Publication No.: US08221609B2Publication Date: 2012-07-17
- Inventor: Reiko Fujita , Hitoshi Nakamura , Koji Mizuguchi , Shohei Kanamura , Takashi Omori , Kazuhiro Utsunomiya , Shunji Nomura
- Applicant: Reiko Fujita , Hitoshi Nakamura , Koji Mizuguchi , Shohei Kanamura , Takashi Omori , Kazuhiro Utsunomiya , Shunji Nomura
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-142565 20090615
- Main IPC: C25C3/34
- IPC: C25C3/34 ; C25C7/00 ; C25B1/00 ; C25B9/06 ; C25C3/30 ; C25B1/21
Abstract:
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.
Public/Granted literature
- US20100314260A1 PROCESS FOR PRODUCING RARE METAL AND PRODUCTION SYSTEM THEREOF Public/Granted day:2010-12-16
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