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. 17, 2023
Filed:
Oct. 23, 2018
Applicant:
Pq Corporation, Valley Forge, PA (US);
Inventors:
Hong-Xin Li, Lansdale, PA (US);
William E Cormier, Harleysville, PA (US);
Bjorn Moden, West Chester, PA (US);
Assignee:
PQ Corporation, Valley Forge, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/94 (2006.01); B01J 29/76 (2006.01); C01B 39/46 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9418 (2013.01); B01J 29/7615 (2013.01); C01B 39/46 (2013.01); B01D 2251/2062 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/502 (2013.01); B01J 2229/18 (2013.01);
Abstract
There is disclosed an organic-free, metal-containing zeolite Beta with a silica-to-alumina ratio (SAR) ranging from 5 and 20, and a metal content of at least 0.5 wt. %. There is also disclosed a method of making such a zeolite Beta without organic structure directing agent (SDA). The metal, which may comprise Fe or Cu, can be found in amounts ranging from 1-10 wt. %. A method of selective catalytic reduction of nitrogen oxides in exhaust gases using the disclosed zeolite is also disclosed.