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. 18, 2000
Filed:
Apr. 14, 1998
Applicant:
Inventor:
Erik Andreas Gam, H.o slashed.rsholm, DK;
Assignee:
Haldor Topsoe A/S, Lyngby, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01C / ; C01C / ;
U.S. Cl.
CPC ...
423360 ; 422148 ; 423361 ;
Abstract
Process for the preparation of ammonia at elevated pressure and temperature in an ammonia reactor, comprising passing a process stream of ammonia synthesis gas successively through at least three catalyst beds and reacting the synthesis gas in the beds;