Process for producing cerium oxide particulates
US4663137A · kind A · utility
25Cited by
1References
17Claims
0Family size
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Inventors
Key dates
| Filing date | Feb 20, 1985 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Feb 20, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Morphologically improved cerium oxide particulates useful, e.g., as catalysts/catalyst supports, and having a B.E.T. specific surface of at least 85.+-.5 m.sup.2 /g, measured at a temperature ranging from 350.degree. C. to 450.degree. C., are prepared by hydrolyzing an aqueous solution of a cerium (IV) salt in an acidic medium, filtering the precipitate of hydrolysis which results, washing and optionally drying said precipitate, and then calcining same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.