Wellgreen Project Preliminary Economic Assessment ... - OTCIQ.com

Test No.: F28 Project No.: 50149-001 Operator: YW Date: Jan 23 2012
Purpose: Rougher Flotation test, Repeat F27 with 5 min aeration
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:
Feed K 80 :90 µm
Stage
245
Reagents added, grams per tonne
SIPX 3477 PAX CMC MIBC* DF 250
Time, minutes
Grind Cond. Froth
pH Eh
Grind 57
Aeration 5
Rougher 1 20 12 1 4 9.0 25.8
Rougher 2 10 1 4 8.8 24.0
Rougher 3 10 1 4 8.8 20.0
Rougher 4 10 1 4 8.7 16.0
Rougher 5 10 1 4 8.7 23.2
Total 0 60 0 0 0 12
* As required
0 57 10 20
Stage
Rougher
Flotation Cell 1000-D12
Assay for: Cu, Ni, S, Pt, Pd, Au, Fe, MgO
Speed: rpm 1800
Ro tails Ni(S)
Metallurgical Balance
Product
Weight
Assays, (Pt, Pd, Au g/t), (Cu, Ni, S, Fe, MgO %)
% Distribution
g % Cu Ni S Pt Pd Au Fe MgO Cu Ni S Pt Pd Au Fe MgO
Ro Conc 1 89.4 4.50 5.29 2.76 9.97 1.63 5.24 0.38 16.6 19.2 73.6 29.3 19.1 15.94 47.8 42.0 6.2 3.6
Ro Conc 2 46.7 2.35 0.78 3.93 7.36 1.88 2.52 0.11 15.6 21.1 5.7 21.8 7.4 9.6 12.0 6.3 3.1 2.0
Ro Conc 3 54.4 2.74 0.43 1.94 5.38 1.57 1.32 0.06 15.2 23.1 3.6 12.5 6.3 9.3 7.3 4.0 3.5 2.6
Ro Conc 4 38.8 1.95 0.31 1.04 4.60 1.57 0.92 0.05 15.1 23.1 1.9 4.8 3.8 6.7 3.6 2.4 2.5 1.9
Ro Conc 5 36.1 1.82 0.23 0.67 4.46 1.44 0.78 0.06 15.1 23.2 1.3 2.9 3.5 5.7 2.9 2.7 2.3 1.7
Ro Tail 1722.8 86.7 0.05 0.14 1.62 0.28 0.15 < 0.02 11.4 24.6 13.9 28.7 59.9 52.8 26.4 42.6 82.5 88.2
Ni(S)= 0.08
Head ( calc. ) 1988 100 0.32 0.42 2.34 0.46 0.49 0.04 12.0 24.18 100 100 100 100 100 100 100 100
Head (direct) 0.33 0.42 2.53 0.41 0.45 0.04 11.9 22.8
Combined Product Weight
Assays, (Pt, Pd, Au g/t), (Cu, Ni, S %) % Distribution
g % Cu Ni S Pt Pd Au Fe MgO Cu Ni S Pt Pd Au Fe MgO
Ro Conc 1 89.4 4.50 5.29 2.76 9.97 1.63 5.24 0.38 16.6 19.2 73.6 29.3 19.1 15.94 47.8 42.0 6.2 3.6
Ro Conc 1-2 136.1 6.8 3.74 3.16 9.07 1.72 4.31 0.29 16.3 19.9 79.3 51.1 26.5 25.5 59.8 48.3 9.3 5.6
Ro Conc 1-3 190.5 9.6 2.80 2.81 8.02 1.67 3.45 0.22 16.0 20.8 82.9 63.7 32.8 34.9 67.1 52.4 12.8 8.2
Ro Conc 1-4 229.3 11.5 2.38 2.51 7.44 1.66 3.03 0.19 15.8 21.2 84.8 68.5 36.6 41.5 70.8 54.8 15.2 10.1
Ro Conc 1-5 265.4 13.3 2.08 2.26 7.04 1.63 2.72 0.18 15.7 21.4 86.1 71.3 40.1 47.2 73.6 57.4 17.5 11.8
Product Weight
Assays, % % Distribution
g % Cp Pn Po Gangue Cp Pn Po Gangue
Rougher 1 89.4 4.50 15.33 7.82 5.32 71.5 73.6 30.3 5.6 3.4
Rougher 2 46.7 2.35 2.3 11.1 7.61 79.0 5.7 22.6 4.2 2.0
Rougher 3 54.4 2.74 1.25 5.45 8.3 85.0 3.6 12.8 5.3 2.5
Rougher 4 38.8 1.95 0.90 2.87 8.8 87.4 1.9 4.8 4.0 1.8
Rougher 5 36.1 1.82 0.67 1.81 9.6 88.0 1.3 2.8 4.0 1.7
Rougher Tail 1723 86.7 0.15 0.36 3.81 95.7 13.9 26.6 77.0 88.6
Head (calc.)
Combined Products
1988 100 0.94 1.16 4.29 93.6 100 100 100 100
Ro Conc 1 4.50 15.33 7.82 5.32 71.5 73.6 30.33 5.57 3.44
Ro Conc 1-2 6.85 10.8 8.96 6.11 74.1 79.3 52.9 9.73 5.42
Ro Conc 1-3 9.6 8.11 7.96 6.7 77.2 82.9 65.7 15.0 7.9
Ro Conc 1-4 11.5 6.89 7.10 7.1 78.9 84.8 70.6 19.0 9.7
Ro Conc 1-5 13.3 6.04 6.38 7.4 80.2 86.1 73.4 23.0 11.4
Ro Tail 86.7 0.15 0.36 3.81 95.7 13.94 26.6 77.0 88.6