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. 17, 2016
Filed:
Nov. 30, 2010
Applicants:
László Domokos, Amsterdam, NL;
Wiebe Sjoerd Kijlstra, Amsterdam, NL;
Lay Hwa Ong, Amsterdam, NL;
Edward Julius Creyghton, Amsterdam, NL;
Inventors:
László Domokos, Amsterdam, NL;
Wiebe Sjoerd Kijlstra, Amsterdam, NL;
Lay Hwa Ong, Amsterdam, NL;
Edward Julius Creyghton, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 39/02 (2006.01); C01B 39/20 (2006.01); C01B 39/24 (2006.01); C10G 47/16 (2006.01); B01J 29/08 (2006.01); B01J 37/10 (2006.01); B01J 23/888 (2006.01); B01J 37/02 (2006.01); B01J 37/06 (2006.01); C10G 47/18 (2006.01); C10G 47/20 (2006.01);
U.S. Cl.
CPC ...
C10G 47/16 (2013.01); B01J 23/888 (2013.01); B01J 29/084 (2013.01); B01J 37/0201 (2013.01); B01J 37/0207 (2013.01); B01J 37/06 (2013.01); B01J 37/10 (2013.01); C01B 39/026 (2013.01); C01B 39/20 (2013.01); C01B 39/24 (2013.01); C10G 47/18 (2013.01); C10G 47/20 (2013.01); B01J 2029/081 (2013.01); B01J 2229/126 (2013.01); B01J 2229/16 (2013.01); B01J 2229/36 (2013.01); B01J 2229/37 (2013.01); B01J 2229/42 (2013.01);
Abstract
Disclosed is a process for the preparation of a faujasite zeolite. A starting zeolite of the faujasite structure having a silica to alumina ratio of from 4.5 to 6.5 and an alkali level of less than 1.5% wt is steam calcined to produce an intermediate zeolite. The intermediate zeolite is treated with an acidified solution having specificately defined characteristics.