Treatment of copper refinery anode slime
US4352786A · kind A · utility
10Cited by
23References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1981 |
| Grant date | Oct 5, 1982 |
| Priority date | — |
| Expiry date | Feb 24, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S204/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the removal of lead content in anode slime by subjecting the latter to primary and secondary leach in a medium of an ammonium acetate solution at a temperature not exceeding 80.degree. C. Whereby lead dissolution is maximized and other metals are minimized. Separate the leach solution from the undissolved slime residue, crystallize lead from the separated leach solution and recover the crystallized lead acetate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.