Process for electrowinning of copper matte
US5622615A · kind A · utility
24Cited by
20References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1996 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Jan 4, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sulfur dioxide free process for the production of high purity metallic copper from copper-matte wherein copper-matte is leached under oxidizing conditions in a ferric-containing acid copper sulfate electrolyte leach assembly including one or more leach reactors to yield a copper-rich electrolyte, and copper cathode is produced in an electrowinning assembly which is physically decoupled from the leaching assembly and may include one or more electrowinning cells. The process operates at ambient pressure and temperatures less than the boiling point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.