Colloidal dispersions of cerium (IV) compound
US5021192A · kind A · utility
14Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1987 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Mar 26, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/64
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Highly concentrated, aqueous colloidal dispersions of a cerium (IV) compound, adapted for the impregnation of catalyst supports, are prepared by reacting an aqueous solution of a cerium (IV) salt with a base, to precipitate a certain cerium hydroxynitrate, separating and washing said precipitate, and then dispersing the washed precipitate in an aqueous acid medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.