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. 12, 2010
Filed:
Nov. 30, 2005
Applicants:
Gianni Girotti, Novara, IT;
Franco Rivetti, Milan, IT;
Renzo Bignazzi, Legnano-Milano, IT;
Inventors:
Assignee:
Polimeri Europa S.p.A., Brindisi, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/27 (2006.01); C07C 6/12 (2006.01); C07C 2/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a multi-step chemical transformation process for the production of 2,6-dimethylnaphthalene starting from one or more naphthalene hydrocarbons or hydrocarbon blends containing the same, one or more benzene hydrocarbons and, optionally, a methylating agent reacted in the presence of a catalyst containing a zeolite belonging to the MTW structural group, where hydrogen is fed in at least one of the steps.