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Copper extraction technology. World copper production has increased steadily in the period 1964-2007 from 9 Mt to 16 Mt per year.In 2008 the copper production will be close to 18 Mt.More than 20-25 % of that copper is produced via biohydrometallurgy. BioCOP technology. High concentrations of Cu (20-25g/L) are required if iron cementation is used, midrange concentrations (10-12 g/L) are used in solvent extraction. .

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