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. 14, 1999
Filed:
Sep. 18, 1996
Applicant:
Inventors:
David L King, Mountain View, CA (US);
Eric G Derouane, Liverpool, GB;
Jacques C DeDeken, Palo Alto, CA (US);
Toshihiko Masuda, Sagamihara, JP;
Shinji Nishikawa, Kawasaki, JP;
Hiroshi Fujii, Sunnyvale, CA (US);
Masaaki Adachi, Palo Alto, CA (US);
Assignee:
Catalytica, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; B01J / ; C10G / ;
U.S. Cl.
CPC ...
585475 ; 585475 ; 585489 ; 502339 ; 502 78 ; 208138 ;
Abstract
This invention is an improved process for the conversion of a C.sub.9 mixed alkyl aromatic feedstream containing ethyl substituted aromatics to a product rich in toluenes and/or xylenes via catalytic transalkylation/disproportionation using a palladium loaded moderately, dealuminated mordenite catalyst in the presence of added hydrogen and benzene.