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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ALBION PROCESS<br />
• Involves atmospheric agitated tank leach<strong>in</strong>g with ferric sulphate<br />
at 80°C for about 20 hours, with oxygen sparg<strong>in</strong>g to ma<strong>in</strong>ta<strong>in</strong> an<br />
adequate level of ferric.<br />
• The feed is ultra-f<strong>in</strong>ely ground to less than 20 microns,<br />
• Copper recovery is by conventional SX/EW.<br />
• Sulphur is largely oxidized to sulphates. Limestone is required<br />
to remove iron and excess acid. Acid generated could be<br />
utilized to leach oxide ore.<br />
• Under development by Xstrata and marketed by Core<br />
Resources, Australia.<br />
• Has been commercialized for z<strong>in</strong>c and gold recovery, and has<br />
reached pilot plant scale for <strong>copper</strong>.<br />
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