Process for preparing crystalline barium titanate powder
US6409983B1 · kind B1 · utility
9Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Jul 11, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/64
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a process of preparing barium titanate powders having fine particle morphology and superior crystallinity, by preparing a sol precursor by using a titanium acylate and a barium compound, spraying the sol precursor in a strong alkaline solution for coprecipitation, crystallizing the barium titanate with an optional hydrothermal reaction, and purifying the barium titanate powder by washing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.