Process for producing composite oxide powder containing cerium and zirconium
US5762894A · kind A · utility
19Cited by
5References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 3, 1995 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Jul 3, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.