Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2000 by Universidad Católica de Valparaíso -- Chile
Vol. 3 No. 3, Issue of December 15, 2000
 


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.

Supported by UNESCO / MIRCEN network