Bacterially assisted heap leach
US6969499B1 · kind B1 · utility
3Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2000 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Oct 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/17
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A bacterially assisted heap leach characterized by the steps of: providing an ore heap to oxidize sulphide minerals therein; providing a biological contactor inoculated with ferrous iron oxidizing bacteria; providing at least one leach solution pond to feed solution to, and receive leach solution from both the heaps; and bleeding a portion of the leach solution and passing same to a means for metals recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.