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. 19, 2000
Filed:
Nov. 26, 1997
Applicant:
Inventors:
Marcel Johannes Janssen, Houston, TX (US);
James Andrew Zboray, Houston, TX (US);
Assignee:
Exxon Chemical Pateuts Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585640 ; 585638 ; 585639 ;
Abstract
A process for converting an oxygenate feed to high purity olefins such as polymer-grade propylene (C.sub.3.sup.0 /C.sub.3.sup.= .ltoreq.0.05) at a temperature of about 450.degree. C. (842.degree. F.), using a molecular sieve catalyst having a high preselected Si/Al.sub.2 ratio (such as ZSM-5, ZSM-48) or a preselected Si/Fe.sub.2 ratio (such as FeZSM-5), or SAPO-34.