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:
Oct. 18, 2011
Filed:
Jun. 06, 2007
Yoshihiko Kondo, Akita-ken, JP;
Atsushi Shibayama, Akita-ken, JP;
Fumio Hamada, Akita-ken, JP;
Manabu Yamada, Akita-ken, JP;
Mitsuhiro Akama, Akita-ken, JP;
Takanori Imai, Akita-ken, JP;
Yoshihiko Kondo, Akita-ken, JP;
Atsushi Shibayama, Akita-ken, JP;
Fumio Hamada, Akita-ken, JP;
Manabu Yamada, Akita-ken, JP;
Mitsuhiro Akama, Akita-ken, JP;
Takanori Imai, Akita-ken, JP;
National University Corporation Akita University, Akita-shi, JP;
Abstract
The present invention provides a rare metal/platinum-group metal extractant, which has a completely new structure compared with the conventional rare metal/platinum-group metal extractant and which exhibits excellent extraction performance; it also provides a method for extracting rare metals and platinum-group metals using the extractant. The rare metal/platinum-group metal extractants of the present invention is the one to extract rare metals and platinum-group metals by contacting a solution, in which several kinds of rare metals and platinum-group metals are dissolved, with a solution in which a cyclic phenol sulfide of the following Formula (1) is dissolved to make the rare metals and platinum-group metals move into the cyclic phenol sulfide solution.