Method for preparing α-alumina nano powder
US7115243B2 · kind B2 · utility
1Cited by
3References
7Claims
0Family size
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Key dates
| Filing date | Jan 3, 2003 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Apr 2, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/811
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a preparation method of α-alumina nano powder, and more particularly to a preparation method of α-alumina nano powder that has a uniform particle shape and size distribution, is capable of being produced at a low temperature, and contains less than 20 ppm of alkali metals such as Na and K. the α-alumina nano powder is prepared by glycolating aluminium alkoxide in glycol solution containing the α-iron oxide or α-alumina nucleation seed and carrying out glyco thermal reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.