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. 09, 2006
Filed:
Apr. 20, 2000
Applicants:
Jin-bae Kim, Sakai, JP;
Hisanao JO, Sakai, JP;
Haruo Yoshioka, Sakai, JP;
Hiromi Kiyama, Sakai, JP;
Inventors:
Assignee:
Air Water, Inc., Sapporo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A nitrogen selective adsorbent comprises a zeolite of a faujasite crystalline structure containing Liand at least one of NHand Has essential cations, and has a nitrogen adsorption characteristic represented by specific correlation between the number of associated Liions per unit lattice of a zeolite crystal and the amount of adsorbed nitrogen per unit lattice of the zeolite crystal. An air separation method employs the aforesaid nitrogen selective adsorbent for separation between nitrogen and oxygen by selective adsorption of nitrogen in air.