Process for recovering cesium from cesium ore
US4597955A · kind A · utility
8Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 1985 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | May 1, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/54
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cesium is recovered from a cesium-bearing mineral such as pollucite by roasting with an alkaline flux to convert the cesium to a soluble salt, extracting the cesium salt with water, and separating the cesium solution from the residual solids. Water-soluble permanganate is then added to the cesium solution to selectively precipitate cesium permanganate, giving other soluble metal compounds in solution. Cesium permanganate of high purity is recovered by separation from the residual solution. The cesium permanganate can be converted to other cesium compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.