Beneficiation of gallium in fly ash
US4686031A · kind A · utility
3Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1985 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Dec 27, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B58/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for the beneficiation of gallium from fly ash involves subjecting the ash to particle size classification while avoiding substantial rupturing of cenospheres and plerospheres in the ash and isolating thereby up to 30 percent of the finest ash particles which are lower in iron content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.