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:
Apr. 18, 1995
Filed:
Sep. 28, 1993
Applicant:
Inventor:
Gwan Kim, Olney, MD (US);
Assignee:
W. R. Grace & Co.-Conn., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C01F / ;
U.S. Cl.
CPC ...
502 41 ; 502 65 ; 502303 ; 502521 ;
Abstract
A composition comprising a coprecipitated magnesia-lanthana-alumina (MgO--La.sub.2 O.sub.3 --Al.sub.2 O.sub.3) wherein the MgO component is present as microcrystalline phase, having a BET (N.sub.2) surface area of at least 130 m.sup.2 /g, preferably part of which contains a catalytic oxidation and/or reducing promoter metal such as ceria, vanadia, iron and/or titania, is combined with an FCC catalyst which is used to catalytically crack a hydrocarbon feedstock that contains metal and/or sulfur.