Method of leaching copper sulfide ore with the use of iodine
US8163063B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2009 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Nov 9, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An object of the present invention is to provide a method of efficiently leaching copper from a copper sulfide ore containing chalcopyrite or enargite as a main constituent under versatile conditions for actual operation.A method of leaching copper from a copper sulfide ore, characterized by comprising using, as a leaching solution, a sulfuric acid solution containing iodide ions and ferric (III) ions in an excessive amount relative to the iodide ions and leaching copper from a copper sulfide ore; or a method of leaching copper from a copper sulfide ore, characterized by comprising leaching copper from a copper sulfide ore with the use of a leaching solution further containing water-soluble ligands such as chloride ions that can stabilize ferric (III) ions in addition to the above components, is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.