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:
Mar. 16, 1999
Filed:
Aug. 08, 1997
Applicant:
Inventors:
James Edward Mac Dougall, New Tripoli, PA (US);
Thomas Albert Braymer, Allentown, PA (US);
Charles Gardner Coe, Macungie, PA (US);
Thomas Richard Gaffney, Allentown, PA (US);
Brian Keith Peterson, Fogelsville, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423700 ; 428D / ;
Abstract
A faujasite aluminosilicate with a Si/Al ratio in the range of 1.05 to 1.26 having an non-uniform aluminum distribution, synthesized by crystallizing the zeolite from a mixture of alkali metal aluminate and alkali metal silicate wherein the mixture has an alkali metal oxide to silica ratio of at least 1.6 and a water to alkali metal oxide ratio of at least 37. The X-zeolite has utility as a gas separation adsorbent such as separating oxygen from nitrogen in air.