Decolorization of elemental yellow phosphorus
US4299806A · kind A · utility
4Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1980 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Dec 29, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B25/047
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention is a process for purifying elemental yellow phosphorus by contacting the yellow phosphorus with an aliphatic alcohol-tetraalkyl ammonium halide solution which effectively removes impurities and produces a colorless product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.