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:
May. 18, 2010
Filed:
Jun. 06, 2002
Gianni Girotti, Novara, IT;
Giuseppe Terzoni, Piacenza, IT;
Oscar Cappellazzo, Alghero, IT;
Renzo Bignazzi, Legnano, IT;
Giannino Pazzuconi, Broni, IT;
Gianni Girotti, Novara, IT;
Giuseppe Terzoni, Piacenza, IT;
Oscar Cappellazzo, Alghero, IT;
Renzo Bignazzi, Legnano, IT;
Giannino Pazzuconi, Broni, IT;
ENI S.p.A., Rome, IT;
Polimeri Europa S.p.A., Brindisi, IT;
Abstract
The present invention relates to an integrated process for the production of high purity 2,6-dimethylnaphthalene starting from hydrocarbon mixtures containing naphthalene and/or isomers of methylnaphthalene and/or isomers of dimethylnaphthalene and/or isomers of polymethylnaphthalene, and from an alkylating agent, preferably methanol, reacted in the presence of a methylated benzene solvent or mixture of various methylated benzene solvents, preferably selected from toluene, xylene and trimethylbenzene, and a catalyst consisting of ZSM-12 zeolite and an inorganic ligand.