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:
Jan. 14, 1992
Filed:
May. 14, 1990
Applicant:
Inventors:
Emmerson Bowes, Hopewell, NJ (US);
David S Shihabi, Pennington, NJ (US);
Assignee:
Mobil Oil Corp., Fairfax, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
423328 ; 208111 ; 208120 ; 502 77 ; 585407 ; 585467 ; 585475 ; 585640 ; 585643 ; 585654 ;
Abstract
The catalytic activity of a crystalline aluminosilicate zeolite having a Constraint Index of from about 1 to about 12 for a variety of hydrocarbon conversions including the oligomerization of olefins to provide high viscosity index lubes is significantly enhanced by modifying the catalyst to reduce surface acid sites. This is accomplished by contacting the zeolite with a fluorosilicate salt to extract surface zeolite aluminum which is replaced by silicon.