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:
May. 07, 1991
Filed:
Sep. 22, 1988
Applicant:
Inventor:
Bonita K Marcus, Rye, NY (US);
Assignee:
UOP, Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 70 ; 55 75 ;
Abstract
Ammonia, particularly aqueous ammonia is sequestered in unexpected large amounts on zeolite molecular sieves having high proportions of silica with respect to alumina in their crystal frameworks. While conventional adsorption mechanisms are to some degree involved, it is apparent from the fact that the characteristic odor of ammonia is not detectable by the human sense of smell over the ammonia-loaded adsorbents indicates that other mechanisms are operable. These properties provide the basis for processes and products which are useful in removing ammonia from an environment to alleviate health hazards or unpleasant odor.