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:
Sep. 25, 2001
Filed:
Aug. 11, 1998
Applicant:
Inventors:
Joan Darcissac, Les Bains, FR;
Franck Labruyere, Lyons, FR;
Nilanjan Brahma, La Voulte sur Rhone, FR;
Pierre Dufrense, Valance, FR;
Assignee:
Europeenne de Retraitement de Catalyseurs Eurecat, La Voulte sur Rhone, FR;
Primary Examiner:
Int. Cl.
CPC ...
B01J 3/106 ; B01J 2/026 ;
U.S. Cl.
CPC ...
B01J 3/106 ; B01J 2/026 ;
Abstract
Process for passivation of a heterogenous catalyst of refining reactions or hydrocarbon hydroconversion reactions, characterized in that the external surface of the particles of said heterogeneous catalyst is coated with a protective layer that is made of a particularly inert material which can be eliminated in the reaction zone under the conditions of the reaction.