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. 09, 2005
Filed:
Nov. 09, 2004
Applicants:
Martinus C Lok, Guisborough, GB;
Gordon J Kelly, Darlington, GB;
Gavin Gray, Billingham, GB;
Inventors:
Assignee:
Johnson Matthey PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J023/00 ; B01J020/00 ; B01J021/00 ;
U.S. Cl.
CPC ...
Abstract
A catalyst or precursor thereto comprising cobalt and/or a cobalt compound on a transition alumina support having a total cobalt content of at least 41% by weight and a cobalt surface area, after reduction, greater than 25 mper gram of total cobalt. The catalyst or precursor may be made by slurrying a transition alumina powder having a pore volume of at least 0.7 ml/g with an aqueous cobalt ammine carbonate complex and heating the slurry to decompose the complex.