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. 08, 1990
Filed:
Apr. 20, 1987
Applicant:
Inventors:
Ernest W Valyocsik, Yardley, PA (US);
Stephen S Wong, Medord, NJ (US);
Robert B Calvert, Lawrenceville, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423328 ; 423329 ;
Abstract
Large pore size zeolites produced with organic cations in the synthesis mixture are synthesized with high silica:alumina ratios by terminating the crystallization when the product is partly crystalline, preferably 30% to 90 % crystalline by X-ray diffraction measurement. The method is particularly useful with zeolite beta to produce a partly crystalline product with higher silica:alumina ratio by direct synthesis.