The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Jun. 10, 2010
Reiko Fujita, Nerima-ku, JP;
Hitoshi Nakamura, Yokohama, JP;
Koji Mizuguchi, Kawasaki, JP;
Shohei Kanamura, Yokohama, JP;
Takashi Omori, Adachi-ku, JP;
Kazuhiro Utsunomiya, Yokohama, JP;
Shunji Nomura, Suginami-ku, JP;
Reiko Fujita, Nerima-ku, JP;
Hitoshi Nakamura, Yokohama, JP;
Koji Mizuguchi, Kawasaki, JP;
Shohei Kanamura, Yokohama, JP;
Takashi Omori, Adachi-ku, JP;
Kazuhiro Utsunomiya, Yokohama, JP;
Shunji Nomura, Suginami-ku, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
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.