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. 20, 2009
Filed:
Sep. 25, 2007
Applicants:
Nobuaki Kita, Tokyo, JP;
Yuzuru Nakamura, Tokyo, JP;
Akira Tsukada, Tokyo, JP;
Inventors:
Assignee:
Dowa Metals & Mining Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01F 7/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a recovery method in which the indium sponge that is deposited by substitution in the substitution deposition step in the recovery of indium from an indium-containing material is produced in the form of a powder rather than in a bulky form. This recovery method is a method in which an indium sponge is deposited by substitution by adding a substance containing chlorine, and further adding a reducing agent, to an indium-containing solution whose pH has been adjusted to a value in the range of 1 to 2.2.