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Test No.: F8 Project No.: 50149-001 Operator: YW Date: October 6 2011
Purpose: Rougher Flotation test, repeat F3 add CMC in the rougher
Procedure: As outlined below.
Feed: 2 kg of minus 10 mesh of Master Composite
Grind: 57 minutes / 2 kg @ 65% solids in laboratory Ball Mill
Regrind:
Conditions:
Stage
Target Feed K 80 :90 µm
245 SIPX 3477 PAX CMC MIBC* DF 250 Grind Cond. Froth
Grind 5 57
Condition 1
Rougher 1 40 20 1 2 9.1 26.8
Rougher 2 5 10 5 1 2 9.1 14.8
Rougher 3 10 10 1 4 8.9 46.6
Rougher 4 20 1 4 8.9 -14.4
Rougher 5 30 1 8 8.9 -12.3
Total 0 70 0 0 60 25
* As required
0 57 6 20
Stage
Rougher
Flotation Cell 1000-D12
Assay for: Cu, Ni, S, Pt, Pd, Au
Speed: rpm 1800
To Lakefield
Metallurgical Balance
Product
Reagents added, grams per tonne
Time, minutes
Weight
Assays, (Pt, Pd, Au g/t), (Cu, Ni, S %)
% Distribution
g % Cu Ni S Pt Pd Au Cu Ni S Pt Pd Au
Ro Conc 1 89.1 4.50 5.93 0.90 8.92 1.44 4.80 0.43 72.9 8.92 13.05 14.5 45.6 41.3
Ro Conc 2 77.3 3.90 1.15 6.61 13.8 2.18 2.73 0.14 12.3 56.8 17.5 19.0 22.5 11.7
Ro Conc 3 76.9 3.88 0.40 1.06 7.93 1.97 1.08 0.09 4.25 9.06 10.0 17.1 8.86 7.45
Ro Conc 4 60.1 3.03 0.16 0.47 9.44 1.33 0.54 0.04 1.33 3.14 9.31 9.03 3.46 2.59
Ro Conc 5 86.8 4.38 0.07 0.27 7.14 0.81 0.28 0.03 0.86 2.61 10.2 7.95 2.59 2.80
Ro Tail 1591 80.3 0.04 0.11 1.53 0.18 0.10 < 0.02 8.34 19.5 39.9 32.4 17.0 34.3
Head ( calc. ) 1981 100 0.366 0.45 3.08 0.45 0.47 0.047 100 100 100 100 100 100
Head (direct) 0.330 0.42 2.53 0.41 0.45 0.040
Combined Product Weight Assays, (Pt, Pd, Au g/t), (Cu, Ni, S %)
% Distribution
g % Cu Ni S Pt Pd Au Cu Ni S Pt Pd Au
Ro Conc 1 89.1 4.50 5.93 0.90 8.92 1.44 4.80 0.43 72.9 8.92 13.05 14.5 45.6 41.3
Ro Conc 1-2 166.4 8.40 3.71 3.55 11.2 1.78 3.84 0.30 85.2 65.7 30.6 33.5 68.1 52.9
Ro Conc 1-3 243.3 12.3 2.66 2.76 10.2 1.84 2.97 0.23 89.5 74.8 40.6 50.7 77.0 60.4
Ro Conc 1-4 303.4 15.3 2.17 2.31 10.0 1.74 2.49 0.19 90.8 77.9 49.9 59.7 80.4 62.9
Ro Conc 1-5 390.2 19.7 1.70 1.86 9.38 1.53 2.00 0.16 91.7 80.5 60.1 67.6 83.0 65.7
Product Weight
Assays, % % Distribution
g % Cp Pn Po Gangue Cp Pn Po Gangue
Rougher 1 89.1 4.50 17.2 2.51 5.46 74.8 72.9 9.19 4.06 3.67
Rougher 2 77.3 3.90 3.33 18.7 17.0 61.0 12.3 59.4 11.0 2.60
Rougher 3 76.9 3.88 1.16 2.83 17.3 78.7 4.25 8.95 11.1 3.33
Rougher 4 60.1 3.03 0.46 1.07 23.5 75.0 1.33 2.65 11.8 2.48
Rougher 5 86.8 4.38 0.21 0.56 18.1 81.1 0.86 2.01 13.1 3.88
Rougher Tail 1591 80.3 0.11 0.27 3.69 95.9 8.34 17.8 48.9 84.0
Head (calc.)
Combined Products
1981 100 1.06 1.23 6.05 91.7 100 100 100 100
Ro Conc 1 4.50 17.2 2.51 5.46 74.8 72.9 9.19 4.06 3.67
Ro Conc 1-2 8.40 10.8 10.0 10.8 68.4 85.2 68.6 15.0 6.27
Ro Conc 1-3 12.3 7.72 7.75 12.9 71.6 89.5 77.5 26.2 9.60
Ro Conc 1-4 15.3 6.28 6.43 15.0 72.3 90.8 80.2 37.9 12.1
Ro Conc 1-5 19.7 4.93 5.12 15.7 74.3 91.7 82.2 51.1 16.0
Ro Tail 80.3 0.11 0.27 3.69 95.9 8.34 17.8 48.9 84.0
pH
Eh