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:
Sep. 05, 2006
Filed:
Aug. 03, 2004
Stephen N. Vaughn, Kingwood, TX (US);
John Di-yi Ou, Houston, TX (US);
Jar-lin Kao, Houston, TX (US);
Hsiang-ning Sun, Houston, TX (US);
Stephen N. Vaughn, Kingwood, TX (US);
John Di-Yi Ou, Houston, TX (US);
Jar-Lin Kao, Houston, TX (US);
Hsiang-Ning Sun, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
This invention is directed to a molecular sieve composition or a catalyst containing molecular sieve which has a relatively high residual silica index, preferably at least about 1.5. The molecular sieve or catalyst can be made by contacting a template-containing molecular sieve with a silicon containing material having an average kinetic diameter that is larger than the average pore diameter of the sieve or catalyst, and heating to leave residual silica at the sieve or catalyst surface. The molecular sieve or catalyst is particularly effective in making an olefin product from an oxygenate feedstock.