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

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

Purpose: Rougher Flotation test<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 />

Stage<br />

Target Feed K 80: 90 µm<br />

245 SIPX 3477 PAX CMC MIBC* DF 250 Grind Cond. Froth<br />

Grind 5 57<br />

Condition 1<br />

Rougher 1 10 1 2 8.8 22.7<br />

Rougher 2 5 5 1 2 8.6 56.7<br />

Rougher 3 10 5 1 4 8.7 32.8<br />

Rougher 4 20 5 1 4 8.6 36.5<br />

Rougher 5 30 1 8 8.1 -29.4<br />

Total 0 70 0 0 0 25<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<br />

Speed: rpm 1800<br />

Extra assay:Ro Tails assay for Ni(s)<br />

Metallurgical Balance<br />

Product<br />

Reagents added, grams per tonne Time, minutes<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 45.9 2.33 1.10 0.44 3.00 0.58 4.02 0.23 4.8 1.2 1.0 2.3 16.9 8.5<br />

Ro Conc 2 80.5 4.08 9.30 2.53 15.9 1.96 4.21 0.66 71.0 12.4 9.8 13.9 31.1 42.9<br />

Ro Conc 3 134 6.80 1.01 7.45 18.6 1.74 1.96 0.14 12.8 60.7 19.0 20.5 24.1 15.2<br />

Ro Conc 4 102 5.16 0.33 1.14 18.2 1.83 0.70 0.06 3.2 7.1 14.1 16.4 6.5 4.9<br />

Ro Conc 5 154 7.82 0.15 0.58 20.0 1.11 0.38 0.04 2.2 5.4 23.5 15.0 5.4 5.0<br />

Ro Tail 1455 73.8 0.04 0.15 2.94 0.25 0.12 0.02 5.94 13.3 32.6 31.9 16.0 23.5<br />

Ro Tails Ni(s)= 0.09<br />

Head ( calc. ) 1972 100 0.53 0.83 6.66 0.58 0.55 0.06 100 100 100 100 100 100<br />

Head (direct) 0.52 0.83 6.45 0.57 0.61 0.10<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 45.9 2.3 1.10 0.44 3.00 0.58 4.02 0.23 4.8 1.2 1.0 2.3 16.9 8.5<br />

Ro Conc 1-2 126 6.4 6.32 1.77 11.2 1.46 4.14 0.50 75.8 13.6 10.8 16.2 48.0 51.4<br />

Ro Conc 1-3 260 13.2 3.59 4.69 15.0 1.60 3.02 0.32 88.7 74.3 29.8 36.7 72.1 66.6<br />

Ro Conc 1-4 362 18.4 2.67 3.69 15.9 1.67 2.37 0.24 91.9 81.3 43.9 53.0 78.6 71.5<br />

Ro Conc 1-5 516 26.2 1.92 2.77 17.1 1.50 1.77 0.18 94.1 86.7 67.4 68.1 84.0 76.5<br />

Product Weight<br />

Assays, % % Distribution<br />

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

Rougher 1 45.9 2.33 3.19 1.21 3.91 91.7 4.8 1.27 0.6 2.6<br />

Rougher 2 80.5 4.08 27.0 7.10 10.8 55.1 71.0 13.0 3.1 2.7<br />

Rougher 3 134 6.80 2.93 21.0 28.0 48.1 12.8 64.1 13.5 4.0<br />

Rougher 4 102 5.16 0.96 2.75 44.6 51.7 3.2 6.4 16.3 3.3<br />

Rougher 5 154 7.82 0.43 1.07 51.3 47.2 2.2 3.76 28.3 4.5<br />

Rougher Tail 1455 73.8 0.12 0.34 7.32 92.2 5.9 11.4 38.2 82.9<br />

Head (calc.) 1972 100 1.55 2.22 14.16 82.1 100 100 100 100<br />

Combined Products<br />

Product Weight Assays, % % Distribution<br />

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

Ro Conc 1 2.33 3.19 1.21 3.91 91.7 4.8 1.3 0.6 2.6<br />

Ro Conc 1-2 6.41 18.3 4.97 8.32 68.4 75.8 14.3 3.8 5.3<br />

Ro Conc 1-3 13.2 10.4 13.2 18.5 57.9 88.7 78.4 17.2 9.3<br />

Ro Conc 1-4 18.4 7.75 10.3 25.8 56.2 91.9 84.8 33.5 12.6<br />

Ro Conc 1-5 26.2 5.56 7.52 33.4 53.5 94.1 88.6 61.8 17.1<br />

Ro Tail 73.8 0.12 0.34 7.32 92.2 5.94 11.4 38.2 82.9<br />

pH Eh

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