Table 4. Large-scale plants for the biooxidation of refractory gold mineralsa.
Plant |
Start-up |
Technology |
Capacity |
Fairview, South Africa |
1986 |
Tank leaching |
35 tons gold concentrate/day |
Sao Bento, Brazil |
1990 |
Tank leaching |
150 tons gold concentrate/day |
Harbour Lights, Australia |
1992 |
Tank leaching |
40 tons gold concentrate/day |
Wiluna, Australia |
1993 |
Tank leaching |
115 tons gold concentrate/day |
Ashanti, Ghana |
1994 |
Tank leaching |
1,000 tons gold concentrate/day |
Youanmi, Australia |
1994 |
Tank leaching |
120 tons gold concentrate/day |
Sansu, Ghana |
1994 |
Tank leaching |
1,000 tons gold concentrate/day |
Tamboraque, Peru |
1999 |
Tank leaching |
260,000 tons of zinc flotation tailings |
Mount Leyshon, Australia |
1992 |
Heap leaching |
1,370 tons of copper-gold ore/day |
Newmont-Carlin, USA |
1995 |
Heap leaching |
10,000 tons gold ore/day |
a Brierley, 1997; Loayza and Ly, 1999. |
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