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:
Jul. 11, 2006
Filed:
Apr. 18, 2005
Angela Carati, S. Giuliano Milanese, IT;
Giuseppe Bellussi, Piacenza, IT;
Maria Angela Mantegazza, Monza, IT;
Guido Petrini, Galliate, IT;
Angela Carati, S. Giuliano Milanese, IT;
Giuseppe Bellussi, Piacenza, IT;
Maria Angela Mantegazza, Monza, IT;
Guido Petrini, Galliate, IT;
Enichem S.p.A., San Donato Milanese, IT;
Abstract
A process is described for the preparation of zeolitic catalysts in the form of microspheres, comprising zeolite and oligomeric silica, characterized by a high mechanical resistance. The process consists in subjecting to rapid drying the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammoniumhydroxide as templating agent, and subjecting the product resulting from the drying to calcination.