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. 25, 1987
Filed:
Mar. 19, 1986
Applicant:
Inventor:
James R Jennings, Yarm, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
502330 ; 423363 ;
Abstract
An ammonia synthesis catalyst precursor having a high BET surface area and containing oxides of iron, cobalt, aluminum, and an alkali metal of atomic number equal to, or greater than, 19. On reduction the precursor gives a catalyst having a high initial activity relative to that of a catalyst obtained by reduction of a standard fused, cobalt-free, precursor. The precursor may be made by precipitation followed by calcination.