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. 06, 1996
Filed:
Jan. 06, 1995
Applicant:
Inventors:
Jean-Francois Joly, Paris, FR;
Eric Benazzi, Montesson, FR;
Frederic Chaigne, Valence, FR;
Jean-Yves Bernhard, Mennecy, FR;
Jean-Charles Viltard, Valence, FR;
Assignee:
Institut Francais du Petrole, Rueil Malmaison, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502 38 ; 502232 ; 585730 ; 585731 ;
Abstract
The invention concerns a process for regenerating an impure catalyst comprising sulphuric acid deposited on silica. It is characterized in that the catalyst is calcined at least once to eliminate organic hydrocarbon substances contained in the catalyst, in particular as a result of its use in aliphatic alkylation reactions.