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

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Test No.: F26 <strong>Project</strong> No.: 50149-001 Operator: YW Date: Jan 23 2012<br />

Purpose: Rougher Flotation test,repeat F24, 20 g/t 4037 in the grind<br />

Procedure: As outlined below.<br />

Feed: 2 kg of minus 10 mesh of Master Composite<br />

Grind: 57 minutes / 2 kg @ 65% solids in laboratory Ball Mill<br />

Regrind:<br />

Conditions:<br />

Feed K 80 :90 µm<br />

Stage<br />

245<br />

Reagents added, grams per tonne<br />

4037 3477 PAX CMC MIBC* DF 250<br />

Time, minutes<br />

Grind Cond. Froth<br />

pH Eh<br />

Grind 20 57<br />

Condition 1<br />

Rougher 1 1 4 8.8 36.1<br />

Rougher 2<br />

SIPX<br />

10 3 1 4 8.7 26.6<br />

Rougher 3 10 1 4 8.6 59.9<br />

Rougher 4 10 1 4 8.5 45.7<br />

Rougher 5 10 1 4 8.6 20.6<br />

Total 0 60 0 0 0 3<br />

* As required<br />

0 57 6 20<br />

Stage<br />

Rougher<br />

Flotation Cell 1000-D12<br />

Assay for: Cu, Ni, S, Pt, Pd, Au, Fe, MgO<br />

Speed: rpm 1800<br />

Ro tails Ni(S)<br />

Metallurgical Balance<br />

Product<br />

Weight<br />

Assays, (Pt, Pd, Au g/t), (Cu, Ni, S, Fe, MgO %)<br />

% Distribution<br />

% Cu Ni S Pt Pd Au Fe MgO Cu Ni S Pt Pd Au Fe MgO<br />

Ro Conc 1 82.3 4.15 6.32 0.53 8.21 1.65 4.89 0.40 15.4 19.6 71.4 4.8 11.7 14.91 41.9 38.7 5.0 3.8<br />

Ro Conc 2 62 3.12 1.18 6.14 10.6 2.00 2.65 0.13 18.6 16.4 10.0 42.2 11.4 13.6 17.1 9.5 4.5 2.4<br />

Ro Conc 3 56.1 2.83 0.46 2.99 8.31 1.70 1.40 0.09 18.2 17.8 3.5 18.6 8.1 10.5 8.2 5.9 4.0 2.34<br />

Ro Conc 4 47.9 2.41 0.28 1.03 6.78 1.45 0.76 0.07 17.7 20.3 1.8 5.5 5.6 7.6 3.8 3.9 3.3 2.28<br />

Ro Conc 5 33.3 1.68 0.21 0.69 6.65 1.30 0.67 0.05 18.5 17.9 1.0 2.5 3.8 4.8 2.3 2.0 2.4 1.40<br />

Ro Tail 1703.5 85.8 0.05 0.14 2.02 0.26 0.15 0.02 12.0 22.0 12.2 26.4 59.5 48.6 26.6 40.0 80.6 87.8<br />

Ni(S)= 0.08<br />

Head ( calc. ) 1985 100 0.37 0.45 2.91 0.46 0.48 0.04 12.8 21.5 100 100 100 100 100 100 100 100<br />

Head (direct) 0.33 0.42 2.53 0.41 0.45 0.04 11.9 22.8<br />

Combined Product Weight<br />

Assays, (Pt, Pd, Au g/t), (Cu, Ni, S %) % Distribution<br />

g % Cu Ni S Pt Pd Au Fe MgO Cu Ni S Pt Pd Au Fe MgO<br />

Ro Conc 1 82.3 4.15 6.32 0.53 8.21 1.65 4.89 0.40 15.4 19.6 71.4 4.8 11.7 14.9 41.9 38.7 5.0 3.8<br />

Ro Conc 1-2 144.3 7.3 4.11 2.94 9.24 1.80 3.93 0.28 16.8 18.2 81.5 47.0 23.0 28.5 59.1 48.1 9.5 6.2<br />

Ro Conc 1-3 200.4 10.1 3.09 2.95 8.98 1.77 3.22 0.23 17.2 18.1 85.0 65.6 31.1 39.0 67.3 54.1 13.6 8.5<br />

Ro Conc 1-4 248.3 12.5 2.55 2.58 8.55 1.71 2.75 0.20 17.3 18.5 86.9 71.0 36.7 46.6 71.0 58.0 16.9 10.8<br />

Ro Conc 1-5 281.6 14.2 2.27 2.36 8.33 1.66 2.50 0.18 17.4 18.5 87.8 73.6 40.5 51.4 73.4 60.0 19.4 12.2<br />

Product Weight<br />

Assays, % % Distribution<br />

g % Cp Pn Po Gangue Cp Pn Po Gangue<br />

Rougher 1 82.3 4.15 18.32 1.47 3.45 76.8 71.4 5.0 2.5 3.5<br />

Rougher 2 62.0 3.12 3.4 17.4 9.61 69.5 10.0 44.1 5.3 2.4<br />

Rougher 3 56.1 2.83 1.33 8.39 13.4 76.9 3.54 19.2 6.7 2.4<br />

Rougher 4 47.9 2.41 0.81 2.78 14.7 81.7 1.84 5.4 6.3 2.1<br />

Rougher 5 33.3 1.68 0.61 1.80 15.4 82.2 0.96 2.4 4.6 1.5<br />

Rougher Tail 1704 85.8 0.15 0.34 4.88 94.6 12.2 23.9 74.5 88.2<br />

Head (calc.)<br />

Combined Products<br />

1985 100 1.06 1.24 5.62 92.1 100 100 100 100<br />

Ro Conc 1 4.15 18.32 1.47 3.45 76.8 71.4 4.95 2.55 3.46<br />

Ro Conc 1-2 7.27 11.9 8.33 6.10 73.7 81.5 49.0 7.89 5.81<br />

Ro Conc 1-3 10.1 8.95 8.35 8.1 74.6 85.0 68.2 14.6 8.2<br />

Ro Conc 1-4 12.5 7.38 7.27 9.4 76.0 86.9 73.6 20.9 10.3<br />

Ro Conc 1-5 14.2 6.58 6.63 10.1 76.7 87.8 76.1 25.5 11.8<br />

Ro Tail 85.8 0.15 0.34 4.88 94.6 12.17 23.9 74.5 88.2

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