Process for separation of dross elements combining sodium addition to molten bullion followed by controlled solidification of casting
US4404026A · kind A · utility
5Cited by
1References
10Claims
0Family size
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Key dates
| Filing date | Jul 22, 1982 |
| Grant date | Sep 13, 1983 |
| Priority date | — |
| Expiry date | Jul 22, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B13/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for the introduction of sodium into lead bullion followed by controlled solidification results in higher recovery of lead from the matte and speiss, and the elimination of the expensive undesirable dross reverberatory practice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.