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. 05, 1993
Filed:
Jun. 07, 1990
Bernard Juguin, Rueil-Malmaison, FR;
Pierre Dufresne, Rueil-Malmaison, FR;
Francis Raatz, Acheres, FR;
Germain Martino, Poissy, FR;
Institut Francais du Petrole, Rueil-Malmaison, FR;
Abstract
The invention relates to a process for producing an alkylbenzene from benzene and an aliphatic mono-olefin in the presence of a catalyst based on a dealuminized Y zeolite with a molar ratio SiO.sub.2 /Al.sub.2 O.sub.3 ranging from 8 to 70, the product of this reaction being afterwards fractionated into a first fraction containing non converted benzene and a mono-alkylbenzene and a second fraction containing a poly-alkylbenzene, said second fraction reacting then with benzene in the presence of a catalyst based on a dealuminized mordenite with a total atomic ratio Si/Al ranging from 30 to 80. The invention especially applies to the production of ethylbenzene and cumene respectively from ethylene and propene.