Recovery of tungsten from heavy metal alloys
US4338126A · kind A · utility
26Cited by
3References
3Claims
0Family size
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Key dates
| Filing date | Jun 9, 1980 |
| Grant date | Jul 6, 1982 |
| Priority date | — |
| Expiry date | Jun 9, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B34/36
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Tungsten is reclaimed from heavy metal alloys of the type having tungsten metal dispersed throughout a matrix material by treating the heavy metal alloy with zinc to form a molten mixture and separating the zinc from the resulting alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.