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. 01, 1995
Filed:
Oct. 21, 1993
Applicant:
Inventors:
Russell W Johnson, Elmhurst, IL (US);
Brent S DeFeo, Sparta, NJ (US);
Francis S Lupton, Evanston, IL (US);
Mark B Koch, Mt. Prospect, IL (US);
Assignee:
AlliedSignal Inc., Morris Township, Morris County, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01C / ; C07C / ;
U.S. Cl.
CPC ...
423352 ; 564463 ;
Abstract
A method for converting hydrazine and/or substituted hydrazines, particularly unsymmetric dimethyl hydrazine (UDMH), to ammonia or ammonia and the corresponding amines by hydrogenation over a supported Group VIII metal catalyst. Preferably, the hydrazines are dissolved in a suitable solvent and then hydrogenated at a temperature of about 0.degree. to 250.degree. C., followed by separation of the commercially valuable ammonia and amines. Alternatively, a gas phase reaction may be used.