Enhancement of bioleach systems using nutrient additives
US5413624A · kind A · utility
8Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1994 |
| Grant date | May 9, 1995 |
| Priority date | — |
| Expiry date | Feb 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/17
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Materials and methods for the enhancement of the biooxidative acid leaching of heavy metals from sulfide ore are disclosed and claimed. The enhancement of bioleach solutions with a nutrient supplement selective for a particular sulfide oxidizing strain of bacteria significantly increases copper solubilization of chalcopyrite ore. Likewise, copper solubilization is enhanced by enriching bioleach solutions with a non-selective growth mediums.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.