Removal of alkali metals and alkaline earth metals from molten aluminum
US4470846A · kind A · utility
126Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 6, 1983 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Jan 6, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B21/062
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of removing dissolved contaminant alkali metals and alkaline earth metals from molten aluminum by reaction of the contaminants with solid particulate aluminum-fluoride-yielding material, wherein a body of the molten aluminum to be decontaminated is stirred, in the presence of the aluminum fluoride particles, in such manner as to generate and maintain a stable vortex in the molten body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.