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

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Test No.: F1 <strong>Project</strong> No.: 50149-001 Operator: YW Date: September 15 2011<br />

Purpose: Rougher flotation sighter test<br />

Procedure: As outlined below.<br />

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

Grind:<br />

Regrind:<br />

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

Feed K80 :90 µm<br />

Conditions:<br />

Stage<br />

245<br />

Reagents added, grams per tonne<br />

SIPX 3477 PAX CMC Lime MIBC*<br />

Time, minutes<br />

Grind Cond. Froth<br />

pH<br />

Grind 57<br />

Condition 40 10 1 9.0<br />

Rougher 1 4<br />

Condition 30 5 1 8.8<br />

Rougher 2 6<br />

Condition 30 5 1 8.9<br />

Rougher 3 8<br />

Total 0 100 0 0 0 0 20 57 3 18<br />

* As required<br />

Stage<br />

Rougher<br />

Flotation Cell 1000-D12<br />

Speed: rpm 1800<br />

Assay for:<br />

PSA on tail<br />

Cu, Ni, S, Pt, Pd, Au<br />

Metallurgical Balance<br />

Product<br />

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

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

Ro Conc 1 191.6 11.1 2.81 3.00 11.3 1.78 3.33 0.351 84.7 70.8 39.7 44.8 73.1 72.5<br />

Ro Conc 2 148.5 8.57 0.23 0.50 7.91 1.11 0.62 0.064 5.4 9.1 21.5 21.7 10.5 10.2<br />

Ro Conc 3 150.0 8.65 0.09 0.26 5.77 0.54 0.30 0.032 2.1 4.8 15.8 10.6 5.1 5.2<br />

Ro Tail 1244 71.7 0.04 0.10 1.01 0.14 0.08 0.009 7.8 15.3 23.0 22.9 11.3 12.1<br />

Head ( calc. ) 1734 100 0.37 0.47 3.15 0.44 0.50 0.053 100 100 100 100 100 100<br />

Head (direct) 0.33 0.42 2.53 0.41 0.45 0.040<br />

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

% Distribution<br />

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

Ro Conc 1 191.6 11.1 2.81 3.00 11.3 1.78 3.33 0.35 84.7 70.8 39.7 44.8 73.1 72.5<br />

Ro Conc 1-2 340.1 19.6 1.68 1.91 9.84 1.49 2.15 0.23 90.1 79.9 61.2 66.5 83.7 82.8<br />

Ro Conc 1-3 490.1 28.3 1.20 1.40 8.60 1.20 1.58 0.17 92.2 84.7 77.0 77.1 88.7 87.9<br />

Product Weight<br />

Assays, % % Distribution<br />

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

Rougher 1 191.6 11.1 8.14 8.40 15.0 68.4 84.7 73.2 26.7 8.3<br />

Rougher 2 148.5 8.57 0.67 1.21 19.2 79.0 5.4 8.2 26.4 7.4<br />

Rougher 3 150.0 8.65 0.26 0.58 14.4 84.7 2.1 3.9 20.1 8.0<br />

Rougher Tail 1244 71.7 0.12 0.26 2.33 97.3 7.8 14.7 26.8 76.3<br />

Head (calc.) 1734 100 1.06 1.27 6.22 91.4 100 100 100 100<br />

Combined Products<br />

Ro Conc 1 11.1 8.14 8.40 15.0 68.4 84.7 73.2 26.7 8.3<br />

Ro Conc 1-2 19.6 4.88 5.26 16.8 73.0 90.1 81.4 53.1 15.7<br />

Ro Conc 1-3 28.3 3.47 3.83 16.1 76.6 92.2 85.3 73.2 23.7<br />

Ro Tail 71.7 0.12 0.26 2.33 97.3 7.82 14.7 26.8 76.3

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