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:
Sep. 13, 1977
Filed:
May. 02, 1975
Applicant:
Inventors:
Hussain El-Ghatta, Chur, GR, CH;
Johann Karl Forrer, Domat-Ems, GR, CH;
Assignee:
Inventa AG fur Forschung und Patentverwertung, Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423387 ; 423388 ; 423395 ;
Abstract
A process for making hydroxyl ammonium salts by hydrogenation of nitric oxide in an acid medium in the presence of a platinum catalyst, wherein the catalyst contains 15 to 50 atom percent of selenium and the acid medium is at least 2N during the reaction. A new catalyst and method of making it are also disclosed.