what's happening in copper hydromet - ALTA Metallurgical Services
what's happening in copper hydromet - ALTA Metallurgical Services
what's happening in copper hydromet - ALTA Metallurgical Services
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AGITATED TANK ACIDIC FERRIC SULPHATE LEACHING<br />
OF SECONDARY SULPHIDE ORES<br />
• Typically applied to high grade secondary sulphide and mixed<br />
sulphide/oxide ores. (Heap bio-leach<strong>in</strong>g is commonly used for<br />
lower grade ores.)<br />
• Operations:<br />
- Sepon, MMG, Laos<br />
- Las Cruces, First Quantum, Spa<strong>in</strong><br />
- Mt Gordon, QLD, now closed.<br />
• The ferric iron level is ma<strong>in</strong>ta<strong>in</strong>ed by oxygen <strong>in</strong>jection or<br />
pressure oxidation.<br />
• Typically operates at high temperature; cool<strong>in</strong>g ahead of SX.<br />
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