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:
Feb. 01, 2011
Filed:
Dec. 13, 2004
Vittorio Arca, Chioggia-Venezia, IT;
Angelo Boscolo Boscoletto, Sottomarina-Venezia, IT;
Vittorio Arca, Chioggia-Venezia, IT;
Angelo Boscolo Boscoletto, Sottomarina-Venezia, IT;
Polimeri Europa S.p.A., Brindisi, IT;
Abstract
Process for the catalytic hydrodealkylation alone of hydrocarbons, comprising C-Calkylaromatic compounds, optionally mixed with C-Caliphatic and cycloaliphatic products, which comprises treating said hydrocarbon compositions, in continuous and in the presence of hydrogen, with a catalyst consisting of a ZSM-5 zeolite, as such or in a bound form, wherein the Si/Al molar ratio in the ZSM-5 ranges from 5 to 35, modified with at least one metal selected from those belonging to groups IIB, VIB, VIII, at a temperature ranging from 400 to 650° C., a pressure ranging from 2 to 4 MPa and a H/charge molar ratio ranging from 3 to 6.