Metallurgical testing that was carried out for Starfield Resources Inc. from 2001 to 2011 by Kingston Process Metallurgy, SGS Lakefield, and NeoFerric generated a predominantly hydrometallurgical flowsheet on which to assess the economic viability of the project at the scoping level. Recent tests were carried out by SGS for Canadian North Resources to include the recovery of PGMs.
Previous metallurgical tests were completed on the recovery of base metals (copper, nickel and cobalt) from massive sulfide ores only.
Historical | Recent: Canadian North Resources |
---|
Hydrometallurgical Processes (1) (Starfield 2011) | Hydrometallurgical Processes (2) (CNRI 2013) | Flotation into Two Concentrates plus Platsol (CNRI 2016) | |
---|---|---|---|
Nickel | 94% | 94% | 87% |
Copper | 97% | 99% | 99% |
Cobalt | 89% | 91% | 90% |
Platinum | NA | 50% | 90-95% |
Palladium | NA | 77% | 90-95% |
Note: All tests completed by SGS. Historical (1): Hydrometallurgical process for nickel, copper, and cobalt. Recent (2): Hydrometallurgical methods plus final PGM-Base Metal element extraction from residue using Platsol process.