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:
Oct. 13, 1998
Filed:
Aug. 22, 1997
Applicant:
Inventors:
Abraham Benderly, Houston, TX (US);
Jimmy Tai-Nin Chow, Houston, TX (US);
Parviz Taami-Ala, Humble, TX (US);
Assignee:
Rohm and Haas Company, Phila, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C01C / ; B01J / ;
U.S. Cl.
CPC ...
423235 ; 423236 ; 423237 ; 4232391 ;
Abstract
Hydrogen cyanide or ammonia present in a gaseous stream is decomposed catalytically in the presence of oxygen at relatively low temperature by contact with carbonaceous adsorbents doped with oxides of first row transition metals, silver or lanthanide elements, preferably with cobalt, chromium, manganese, silver, and cerium, in the presence or absence of a gaseous reducing agent such as a hydrocarbon or a volatile carboxylic acid.