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:
Jan. 22, 2008
Filed:
Feb. 18, 2004
Applicants:
John Paul Breen, Belfast, GB;
Robert Burch, Antrim, GB;
Paul John Collier, Reading, GB;
Stanislaw Edmund Golunski, Reading, GB;
Inventors:
John Paul Breen, Belfast, GB;
Robert Burch, Antrim, GB;
Paul John Collier, Reading, GB;
Stanislaw Edmund Golunski, Reading, GB;
Assignee:
Johnson Matthey PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing para-xylene by the selective methylation of toluene comprising contacting a reactant mixture comprising toluene, methanol and added water, with an oxide modified ZSM-5 zeolite catalyst in a flow reactor in conditions selected to limit coke formation on the catalyst and at a contact time, between reactant mixture and catalyst, of less than 1 second.