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:
Jun. 04, 2019
Filed:
Aug. 08, 2012
Tomoyuki Awazu, Itami, JP;
Takayasu Sugihara, Osaka, JP;
Masatoshi Majima, Itami, JP;
Toshiyuki Nohira, Kyoto, JP;
Rika Hagiwara, Kyoto, JP;
Seitaro Kobayashi, Kyoto, JP;
Tomoyuki Awazu, Itami, JP;
Takayasu Sugihara, Osaka, JP;
Masatoshi Majima, Itami, JP;
Toshiyuki Nohira, Kyoto, JP;
Rika Hagiwara, Kyoto, JP;
Seitaro Kobayashi, Kyoto, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Kyoto University, Kyoto-shi, Kyoto, JP;
Abstract
An element recovery method and an element recovery apparatus are provided by which an element containing a high-purity rare earth element can be recovered at low cost. The element recovery method includes the steps of: preparing molten salt containing a rare earth element; and controlling electric potentials in a pair of electrode members at prescribed values while keeping the pair of electrode members in contact with the molten salt, thereby depositing the rare earth element existing in the molten salt on one of the pair of electrode members. In this way, as compared with the conventional wet separation method, an element such as a rare earth element that is to be recovered can be directly recovered from the molten salt in which the element is dissolved, so that the steps of the recovery method can be simplified and reduced in cost.