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:
Jan. 25, 2005
Filed:
Jan. 21, 2003
Applicants:
Cornelis Martinus Lok, Cleveland, GB;
Gavin Gray, Cleveland, GB;
Stephen Derek Rogers, County Durham, GB;
Stephen Bailey, North Yorkshire, GB;
Inventors:
Cornelis Martinus Lok, Cleveland, GB;
Gavin Gray, Cleveland, GB;
Stephen Derek Rogers, County Durham, GB;
Stephen Bailey, North Yorkshire, GB;
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2118 ; B01J 2724 ; B01J 2108 ; C07C 5136 ;
U.S. Cl.
CPC ...
Abstract
Production of nickel/silica hydrogenation catalyst precursors by heating a slurry of particulate silica, e.g. kieselguhr, in an aqueous nickel ammine carbonate solution for a total period of at least 200 minutes at a pH above 7.5, followed by filtration, washing, drying, and optionally calcination.