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:
Nov. 03, 2009
Filed:
Jul. 07, 2005
Akifusai Ohnishi, Osaka, JP;
Nobuaki Fujiwara, Osaka, JP;
Hideki Doi, Osaka, JP;
Toyokazu Matsunami, Osaka, JP;
Hiroshi Tsubota, Osaka, JP;
Toshiaki Muratani, Osaka, JP;
Shoji Nishikawa, Osaka, JP;
Shinichi Yamasaki, Osaka, JP;
Takamichi Honma, Osaka, JP;
Akifusai Ohnishi, Osaka, JP;
Nobuaki Fujiwara, Osaka, JP;
Hideki Doi, Osaka, JP;
Toyokazu Matsunami, Osaka, JP;
Hiroshi Tsubota, Osaka, JP;
Toshiaki Muratani, Osaka, JP;
Shoji Nishikawa, Osaka, JP;
Shinichi Yamasaki, Osaka, JP;
Takamichi Honma, Osaka, JP;
Aquatech Corporation, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The invention provides an indium adsorbent that can cause indium to be adsorbed, and a simple and inexpensive indium fractioning method for isolating and recovering high-purity indium from an acid solution whose primary component is hydrochloric acid and that contains indium. A primary component of the indium adsorbent is an anion-exchange resin that has a crosslinked structure produced by the copolymerization of styrene or acrylamide and divinylbenzene, and at least one of a quaternary ammonium group and a tertiary ammonium group, and that is provided with an acid-adsorbing ability. An acid solution whose primary component is hydrochloric acid and that includes indium is brought into contact with the anion-exchange resin to cause indium to be adsorbed to the anion-exchange resin.