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:
Jun. 12, 2001
Filed:
Jan. 27, 1994
Applicant:
Inventors:
Eric Benazzi, Montesson, FR;
Jean-Francois Joly, Paris, FR;
Joao Miguel Da Silva, Mem Martins, PT;
Maria Filipa Gomes Ribeiro, Amadora, PT;
Assignee:
Institut Francais du Petrole, , FR;
Primary Examiner:
Int. Cl.
CPC ...
B01J 2/100 ;
U.S. Cl.
CPC ...
B01J 2/100 ;
Abstract
The invention is concerned with a catalyst comprising a matrix, a MFI type zeolite and at least one group VIII element, in which the crystals of the MFI type zeolite are desaluminated on their outer surface by at least one treatment with at least one solution of a fluorosilicate of a cation selected from the group formed by NH,, alkylammoniums, K,, Na,, Li,, Ba,, Mg,, Cd,, Cu,, Cu,, Ca,, Cs,, Fe,, Co,, Pb,, Mn,, Rb,, Ag,, Sr,, Zn,, Tl,and H,, the global desalumination rate of said MFI zeolite thus treated being less than 5 atomic per cent.