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. 09, 2013
Filed:
Nov. 19, 2007
Takeo Miki, Osaka, JP;
Tamotsu Sugimoto, Osaka, JP;
Eiichi Sahashi, Osaka, JP;
Takamichi Honma, Osaka, JP;
Tomoharu Maeseto, Kobe, JP;
Takeo Miki, Osaka, JP;
Tamotsu Sugimoto, Osaka, JP;
Eiichi Sahashi, Osaka, JP;
Takamichi Honma, Osaka, JP;
Tomoharu Maeseto, Kobe, JP;
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Kobelco Eco-Solutions Co., Ltd., Kobe-shi, JP;
Abstract
It is an object to provide a method and an apparatus for recovering indium, the method and apparatus ensuring that it is unnecessary to recover indium in the form of indium hydroxide, indium can be recovered easily by a filter or the like without handling inferiors and also, the recovery rate of indium is greatly improved. The method includes immersing a precipitation-inducing metal which includes zinc and is made into the form of a solid such that any part coming into view three-dimensionally has a longitudinal length of 2.5 to 10 mm in an etching waste solution containing at least indium and ferric chloride and allowed to stand, thereby allowing indium contained in the etching waste solution to precipitate on the surface of the precipitation-inducing metal based on a difference in ionization tendency between zinc and indium, and detaching the indium precipitated on the surface of the precipitation-inducing metal to recover it.