Process for making apatitic phosphors
US5232626A · kind A · utility
2Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1992 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Jun 22, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/76
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a method of preparing an alkaline earth halophospor having an antimony content greater than about 0.70 weight percent, a uniform mixture of starting raw materials is fired with already fired phosphor of the desired alkaline earth halophosphate so that the already fired phosphor is refired in an inert atmosphere containing volatile species from the uniform mixture of starting raw materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.