Process for producing composite oxide powder containing cerium a

Details Process for producing composite oxide powder containing cerium a Process for producing composite oxide powder containing cerium a

1995-07-03

1998-06-09

Bos, Steven

Chemistry of inorganic compounds

Rare earth compound

502302, 502303, 502304, C01F 1700, B01J 2300

Patent

active

057628947

ABSTRACT:
A process for producing a powder of composite oxide which includes cerium and zirconium, or which includes cerium, zirconium and further a rare-earth element other cerium. The process includes: dissolving nitrate, sulfate and/or acetate of constituent elements of the composite oxide into water in a predetermined ratio; and spraying and heating a resulting aqueous solution to oxidize the constituent elements of the composite oxide for converting them into a powder of a composite oxide. The thus produced composite oxide powder is micro-fine, homogeneous, and heat resistant.

REFERENCES:
patent: 2900244 (1959-08-01), Bradstreet et al.
patent: 4621071 (1986-11-01), Blanchard et al.
patent: 4910180 (1990-03-01), Berndt et al.
patent: 4927799 (1990-05-01), Matsumoto et al.
patent: 5130109 (1992-07-01), Wan

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