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:
Apr. 25, 2000
Filed:
Mar. 17, 1998
David E Vaughan, Flemington, NJ (US);
Karl G Strohmaier, Port Murray, NJ (US);
Gary B McVicker, Califon, NJ (US);
Owen C Feeley, Baton Rouge, LA (US);
Exxon Research and Engineering Co., Florida Park, NJ (US);
Abstract
A method for preparing novel zeolitic catalyst compositions having a high Si/Al ratio and a crystallinity of at least about 70%. The method involves cation exchanging an as synthesized faujasite material having an Si/Al greater than about 4 with a component selected from the group consisting of ammonium ions and mineral acids, then steam calcining said cation exchanged faujasite in a single steam calcination step at a temperature from about 900.degree. F. to about 1 500.degree. F.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile