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. 28, 2012
Filed:
Dec. 28, 2009
Applicants:
Guido Henze, Buerstadt, DE;
Heiko Urtel, Frankenthal, DE;
Martin Sesing, Waldsee, DE;
Martin Karches, Neustadt, DE;
Inventors:
Guido Henze, Buerstadt, DE;
Heiko Urtel, Frankenthal, DE;
Martin Sesing, Waldsee, DE;
Martin Karches, Neustadt, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 55/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for recovering ruthenium from a used ruthenium-comprising catalyst which comprises ruthenium as ruthenium oxide on a support material which is not readily soluble in mineral acid, which comprises the steps: