Novel cerium oxide particulates
US5017352A · kind A · utility
16Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Dec 29, 2009 |
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 from 100 to 130 m.sup.2 /g, measured at a temperature ranging from 400.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 thence calcining same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.