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. 30, 2022
Filed:
Nov. 26, 2018
Applicant:
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Inventors:
Malek Y. S. Ibrahim, Urbana, IL (US);
Scott E. Denmark, Champaign, IL (US);
Assignee:
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 11/00 (2006.01); C22B 7/00 (2006.01); B01D 53/94 (2006.01); C22B 3/22 (2006.01); C22B 5/12 (2006.01); C22B 3/16 (2006.01); C22B 3/32 (2006.01); C22B 3/28 (2006.01);
U.S. Cl.
CPC ...
C22B 11/04 (2013.01); B01D 53/94 (2013.01); C22B 3/1625 (2013.01); C22B 3/22 (2013.01); C22B 3/282 (2021.05); C22B 3/32 (2021.05); C22B 5/12 (2013.01); C22B 7/009 (2013.01); C22B 11/048 (2013.01); B01D 2255/1025 (2013.01);
Abstract
Disclosed herein is a method for extracting precious metals from supported catalysts. The precious metal in one embodiment is rhodium. The supported catalyst may be from equipment, such as a used catalytic converter. The method is carried out at low temperature, and does not require harsh conditions, such as the use of a strong acid. The method involves contacting the catalytic material with a polar molecule and a reactive gas.