Production of microcrystalline metal oxides
US4588575A · kind A · utility
32Cited by
2References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1984 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Nov 1, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention provides a process for production of a microcrystalline metal oxide having an average particle size less than about 1000 angstroms. An important feature of the invention process involves the application of ultrasonic wave energy during the stage that a solution of metalorganic compounds is being treated to form a gelled solution. The ultrasonic energy input during the gelling stage enhances the production of a high purity metal oxide powder having fine grain particles of uniform microspheric dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.