Canadian North Resources Inc. Provides an Update on its Metallurgical Testing Programs at the Ferguson Lake Project - Seite 2
Table 1
Sample ID | Cu % | Ni % | Co % | S % | Pd g/t | Pt g/t |
2023 Batch 1 drilling | 0.33 | 0.29 | 0.038 | 9.33 | 0.69 | 0.085 |
2023 Batch 2 drilling | 0.042 | 0.062 | 0.01 | 1.01 | 0.98 | 0.72 |
2016 Bulk Sample | 0.86 | 0.96 | NA | 31.5 | 1.88 | 0.18 |
The program and independent review of Batch 1 and 2016 Bulk Sample, medium to high sulphide type mineralized materials encompassed gravity, flotation and magnetic separation test work. Bench tests
successfully produced saleable up to 30% Cu and between 37 and 62 g/t PGMs concentrates with 80% Cu recovery. An independent review of the mineralogy of the deposit estimates the pyrrhotite (iron
sulphide) to pentlandite (Ni sulphide) ratio is in the range of 35:1 in the massive and semi-massive sulphide zones of the deposit, with the Ni deportment to pentlandite to be about 71% envisioning
the creation of a potentially payable 10% Ni bearing concentrate with 51% Ni recovery.
In general, the bench testing of the Batch 1 and 2016 samples, produced high-grade copper and variable grade Ni/Cu concentrates ranging on a grade – recovery curve from 5 to 20% Cu-Ni with recoveries of up to 98% Cu, 61% Ni and 35-75% PGMs. It was concluded that there is potential to significantly improve these results with additional testing using optimized conditions based upon our improved understanding of the Cu, Ni and PGM’s mineral deportment.
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Bench testing of the Batch 2 sample, which was obtained from the low-sulphide PGM rich type mineralized material successfully created potentially payable precious metal concentrates in which the highest PGM grade achieved was 92.1 g/t Pd plus 96.5 g/t Pt (totalling 189 g/t) and recoveries of up to 75% Pd and 55% Pt when gravity separation was included in the flotation flowsheet. Additional tests and investigations of the PGM mineralogy of the deposit are expected to improve these results.