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:
Nov. 14, 2000
Filed:
Apr. 12, 1999
Applicant:
Inventors:
Jean-Francedilla.ois Joly, Lyons, FR;
Vincent Coupard, Lyons, FR;
Julia Magne-Drisch, Vilette de Vienne, FR;
Fabio Alario, Neully sur Seine, FR;
Elisabeth Merlen, Rueil-malmaison, FR;
Sylvie Lacombe, Rueil-malmaison, FR;
Eric Benazzi, Chatou, FR;
Assignee:
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585319 ; 585481 ; 585482 ; 585478 ; 585477 ;
Abstract
A C.sub.8 aromatic feedstock is isomerized by an isomerization stage conducted at 320-380.degree. C. with a catalyst containing at least one EUO-structure-type zeolite and at least one metal of group VIII, to obtain an effluent containing isomerized alkyl aromatics and about 10-30% by weight of naphthenes. The effluent is then subjected to a dehydrogenation stage so as to convert the naphthenes to additional alkyl aromatics.