Process for preparing high purity antimony trichloride and antimony oxide from stibnite ores
US3944653A · kind A · utility
4Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1973 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Oct 9, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Antimony sulfide contained in an antimony sulfide bearing ore, such as stibnite, is converted to high purity antimony trichloride by reacting the antimony sulfide bearing ore with a source of chlorine to form high purity antimony trichloride and sulfur or hydrogen sulfide as separable by-products. The high purity antimony trichloride may be hydrolyzed to form high purity antimony oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.