Method for producing mixed metal oxides and metal oxide compounds
US6974566B2 · kind B2 · utility
38Cited by
35References
8Claims
0Family size
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Key dates
| Filing date | Sep 5, 2001 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | May 23, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process to produce mixed metal oxides and metal oxide compounds. The process includes evaporating a feed solution that contains at least two metal salts to form an intermediate. The evaporation is conducted at a temperature above the boiling point of the feed solution but below the temperature where there is significant crystal growth or below the calcination temperature of the intermediate. The intermediate is calcined, optionally in the presence of an oxidizing agent, to form the desired oxides. The calcined material can be milled and dispersed to yield individual particles of controllable size and narrow size distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.