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:
Aug. 08, 2017
Filed:
Jul. 15, 2015
Applicant:
Iowa State University Research Foundation, Inc., Ames, IA (US);
Inventors:
Ryan T. Ott, Ames, IA (US);
Ralph W. McCallum, Ames, IA (US);
Lawrence L. Jones, Des Moines, IA (US);
Assignee:
Iowa State University Research Foundation, Inc., Ames, IA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 59/00 (2006.01); C22B 7/00 (2006.01); C22B 9/00 (2006.01); C22B 23/02 (2006.01); C22C 1/02 (2006.01); C22C 19/00 (2006.01); C22C 28/00 (2006.01); C22C 33/04 (2006.01); C22B 9/02 (2006.01); C22B 23/00 (2006.01); B01D 3/10 (2006.01); B01D 7/00 (2006.01); B22D 7/00 (2006.01); C22B 9/10 (2006.01); F27D 11/06 (2006.01);
U.S. Cl.
CPC ...
C22B 59/00 (2013.01); B01D 3/10 (2013.01); B01D 7/00 (2013.01); B22D 7/005 (2013.01); C22B 7/001 (2013.01); C22B 7/006 (2013.01); C22B 9/003 (2013.01); C22B 9/02 (2013.01); C22B 9/103 (2013.01); C22B 23/00 (2013.01); C22C 1/02 (2013.01); C22C 19/007 (2013.01); C22C 28/00 (2013.01); C22C 33/04 (2013.01); F27D 11/06 (2013.01); Y02P 10/214 (2015.11);
Abstract
A method of treating rare earth metal-bearing permanent magnet scrap, waste or other material in a manner to recover the heavy rare earth metal content separately from the light rare earth metal content. The heavy rare earth metal content can be recovered either as a heavy rare earth metal-enriched iron based alloy or as a heavy rare earth metal based alloy.