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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HIGH TEMPERATURE PRESSURE OXIDATION STATUS<br />
• Freeport McMoRan, built a semi-commercial plant at Bagdad<br />
Arizona, to treat 15% of Bagdad’s flotation concentrate output,<br />
which came on stream <strong>in</strong> 2003. The nom<strong>in</strong>al operat<strong>in</strong>g<br />
temperature is 225 o C with a retention time of 70 m<strong>in</strong>utes. The<br />
design <strong>copper</strong> recovery was 98%. The <strong>copper</strong> and acid<br />
produced are blended <strong>in</strong>to the exist<strong>in</strong>g low grade sulphide dump<br />
leach<strong>in</strong>g-SX-EW operation.<br />
• First Quantum <strong>in</strong>stalled a system at Kansanshi <strong>in</strong> Zambia to<br />
treat some of the flotation concentrate. The acid formed is<br />
utilized <strong>in</strong> oxide ore leach<strong>in</strong>g. Cathode <strong>copper</strong> is produced by<br />
SX-EW.<br />
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