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:
Mar. 03, 2020
Filed:
Jul. 11, 2016
Applicant:
University of Houston System, Houston, TX (US);
Inventors:
Allan J. Jacobson, Houston, TX (US);
Pradeep Samarasekere, Houston, TX (US);
Assignee:
University of Houston System, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
C22B 59/00 (2006.01); C22B 1/00 (2006.01); C22B 7/00 (2006.01); C22B 3/02 (2006.01); H01F 41/02 (2006.01); C07F 5/00 (2006.01);
U.S. Cl.
CPC ...
C22B 59/00 (2013.01); C07F 5/003 (2013.01); C22B 1/005 (2013.01); C22B 3/02 (2013.01); C22B 7/007 (2013.01); H01F 41/0253 (2013.01); Y02P 10/216 (2015.11); Y02P 10/234 (2015.11);
Abstract
Systems and methods for recovering rare earth metals from rare earth metal-containing magnets includes fragmenting or commutating the magnets, contacting the commutated magnets with a mixture of low molecular weight carboxylic acids such as formic acid and water, and removing or extracting non-rare earth metal carboxylate phases such as an iron carboxylate (formate) phase from a rare earth metal carboxylate (formate) phase, using a solvent such as water.