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The bioleaching behavior of copper and nickel from a low-grade nickel, copper, and cobalt-bearing sulfide ore was investigated. A recovery of 94% Ni, 62% Co and 70% Cu was achieved in 68 days of flask leaching including 18 days of acid pre-leaching and 50 days of bioleaching. However, a recovery of 46% Ni, 39% Co and 13% Cu was achieved in 139 days of column leaching including 19 days of acid pre-leaching...
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