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:
Oct. 11, 1983
Filed:
Jun. 16, 1981
Applicant:
Inventors:
Kazuyoshi Iwayama, Kamakura, JP;
Takehisa Inoue, Tokyo, JP;
Assignee:
Toray Industries, Incorporated, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585481 ; 585488 ; 585489 ;
Abstract
A mixture of xylene isomers containing ethyl benzene is contacted with a catalyst comprising a mordenite type zeolite and rhenium or phosphorus in the presence of hydrogen to isomerize xylenes and at the same time dealkylate ethyl benzene into mainly benzene.