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:
Jun. 21, 2005
Filed:
Dec. 20, 2002
Applicants:
Bing Zhou, Cranbury, NJ (US);
Michael Rueter, Plymouth Meeting, PA (US);
Inventors:
Bing Zhou, Cranbury, NJ (US);
Michael Rueter, Plymouth Meeting, PA (US);
Assignee:
Headwaters Nanokinetix, Inc., Lawrenceville, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J020/34 ; B01J038/62 ; B01J038/50 ; B01J038/56 ;
U.S. Cl.
CPC ...
Abstract
A method for regenerating spent supported metal catalysts comprising treating the spent catalyst with an organo-metallic complex forming agent having an ionization constant pKof at least 2.5. The catalyst activity is restored to an activity level near to or greater than the fresh catalyst. The regeneration method is particularly useful for regenerating spent palladium catalysts on an alumina support as utilized for the hydrogenation of ethyl anthraquinone (EAQ) in the production of hydrogen peroxide.