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. 20, 2019
Filed:
Jul. 30, 2014
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Jens Rudolph, Ludwigshafen, DE;
Rainer Papp, Speyer, DE;
Assignee:
BASF SE, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B 9/08 (2006.01); B08B 3/08 (2006.01); C22B 3/00 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); C07C 45/50 (2006.01); C11D 7/08 (2006.01); C11D 11/00 (2006.01); C22B 3/44 (2006.01); C22B 7/00 (2006.01);
U.S. Cl.
CPC ...
C22B 23/0438 (2013.01); B01J 19/002 (2013.01); B01J 19/246 (2013.01); B08B 9/08 (2013.01); C07C 45/50 (2013.01); C11D 7/08 (2013.01); C11D 11/0041 (2013.01); C22B 3/44 (2013.01); C22B 7/009 (2013.01); B01J 2219/00247 (2013.01); B01J 2219/00252 (2013.01);
Abstract
Method of removing cobalt deposits in a reactor for the cobalt-catalyzed high-pressure hydroformylation of olefins by treatment with aqueous nitric acid, wherein the reactor is at least partly filled with aqueous nitric acid and the temperature of the aqueous nitric acid is increased during the treatment.