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:
Jan. 20, 2009
Filed:
Mar. 14, 2003
Satoshi Okada, Kagawa-gun, JP;
Takahiro Uno, Saitama, JP;
Kazusuke Sato, Saitama, JP;
Shoji Ishiwata, Saitama, JP;
Satoshi Okada, Kagawa-gun, JP;
Takahiro Uno, Saitama, JP;
Kazusuke Sato, Saitama, JP;
Shoji Ishiwata, Saitama, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
One object of the present invention is to provide a separation process that enables the efficient separation of selenium, tellurium, and platinum group elements from a material containing selenium/tellurium and platinum group elements. In order to achieve this object, the invention provides a separation process for platinum group elements comprising: a step (A) for treating a material containing selenium/tellurium and platinum group elements with alkali, a step (B) for leaching selenium/tellurium, and a step (C) for separating the platinum group element-containing leaching residue and the selenium/tellurium leachate.