December 2002

Volume 54    Issue 12

Pilot plant demonstration of the Platsol process for the treatment of the NorthMet copper-nickel-PGM deposit

Mining Engineering , 2002, Vol. 54, No. 12, pp. 18-24
Ferron, C.J.; Fleming, C.A.; O'Kane, P.T.; Dreisinger, D.

The copper-nickel-platinumpalladium (Cu-Ni Pt-Pd) deposits located in the Duluth Complex in Minnesota have been known for at least three decades. The Duluth complex is a large series of mafic to felsic intrusive bodies that host these often large, low-grade, disseminated polymetallic deposits. Some of them are enriched with platinum group metals (PGMs). These deposits represent a unique class of orebody, magnetic sulfide deposits, which are the principal concentrations of Group VIII transition metals — iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), rhodium (Rh), ruthenium (Ru), iridium (Ir), and osmium (Os).

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