laterites - ALTA Metallurgical Services
laterites - ALTA Metallurgical Services
laterites - ALTA Metallurgical Services
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HEAP LEACHING• Development work has been carried out by numerousorganizations since the 1990’s, but no standalone commercialoperation has yet been established.• A commercial satellite operation treating grinding circuit scatswas established in 2007 by Minara at Murrin Murrin inWestern Australia. Fresh ore treatment was also successfullydemonstrated, but is not currently practiced as it is said to bemore profitable to send ore through the existing PAL circuit.• A stand-alone HL demonstration plant was operated byEuropean Nickel at Caldag in Turkey, in 2004; but the projectwas held up by permitting issues. It was sold in 2011 and isnow owned by VTG Nikel of Turkey who are aiming forcommercial operation.23