Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Reexamination Certificate
2006-11-07
2006-11-07
Vanoy, Timothy C. (Department: 1754)
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
C423S594100, C423S594300, C423S595000, C423S599000, C423S594120, C423S594140, C423S263000, C423S594500, C423S021100, C423S055000, C423S050000, C423S140000, C423S042000, C423S101000, C423S071000, C423S085000, C502S303000, C502S304000, C502S305000, C502S324000, C502S325000, C502S345000, C502S349000, C502S343000
Reexamination Certificate
active
07132093
ABSTRACT:
The oxide materials are of the class of ternary mesoporous mixed oxide materials including lanthanum, a metal M selected from the group consisting of Cr, Mn, Fe, Co, Ni, Cu and Zn, and zirconium or cerium such a mesoporous La—Co—Zr mixed oxide material designated as Meso LCZ[x] where x is the atomic ratio (La+Co)/La+Co+Zr. They are useful as catalysts since they show high activities for hydrocarbon oxidation and good resistance against poisoning agents. These highly ordered mesoporous mixed oxides are synthesized by: preparing an amorphous solution of a La-M precursor and adding a salt of zirconium or cerium thereto; acidifying the amorphous solution in the presence of a surfactant under conditions to obtain a clear homogeneous solution; adjusting pH of the solution under conditions to form a solid precipitate; separating the solution and surfactant from the precipitate; and calcinating the precipitate.
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Do Trong On
Kaliaguine Serge
Ogilvy Renault LLP
Universite Laval
Vanoy Timothy C.
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