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Test No.: F10 Project No.: 50149-001 Operator: YW Date: 18-Oct-11
Purpose: Cleaner flotation test, repeat F9 CMC in the cleaner
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:
Target K 80 :90 µm
Conditions:
Reagents added, g/t Time, minutes
Stage Lime SIPX MIBC* CMC DF250 PAX 3477 Grind Cond. Froth pH Eh
Grind 5 57
Condition 1
Rougher 1 10 1 2 8.9 56.9
Rougher 2 5 5 1 2 8.8 14.0
Rougher 3 10 5 1 4 8.8 41.2
Rougher 4 20 5 1 6 8.8 30.4
Regrind (PM) 0
1st Cleaner 5 20 1 8 8.9 14.3
1st Cleaner Scav 10 1 4 8.5 40.7
2nd Cleaner 10 1 6 8.8 43.5
3rd Cleaner 7 5 1 4 8.7 77.2
Total 0 55 32 35 0 57 9
* As required
36 . .
Stage
Roughers 1stClnr and Scav. 2nd, 3rd Cleaner
Flotation Cell 1000g-D12 500-g D12
250-g D12
Speed: rpm 1800
1600
1100
Assay for: Cu, Ni,S, Pt, Pd, Au
MgO assay for 3rd Clnr Conc.
Metallurgical Balance Malvern on combined products
Product
Weight
g % Cu
Assays, (Pt, Pd, Au g/t), (Cu, Ni %)
Ni S Pt Pd Au Cu Ni
% Distribution
S Pt Pd Au
3rd Clnr Conc 140.2 7.0 4.49 4.36 14.3 2.52 5.23 0.31 86.9 65.5 34.9 37.9 72.4 47.0
3rd Clnr Tls 55.2 2.8 0.28 0.98 6.10 1.47 0.85 0.06 2.1 5.8 5.9 8.7 4.6 3.6
2nd Clnr Tls 78.8 4.0 0.15 0.56 6.93 1.15 0.55 0.05 1.6 4.7 9.5 9.7 4.3 4.3
1st Clnr Scv Conc 31.0 1.6 0.10 0.41 8.67 1.07 0.42 0.26 0.4 1.4 4.7 3.6 1.3 8.7
1st Clnr Scv Tls 147.7 7.4 0.05 0.18 2.82 0.35 0.15 0.02 1.0 2.8 7.3 5.5 2.2 3.2
Rougher Tails 1538 77.2 0.04 0.12 1.41 0.21 0.10 0.02 7.9 19.8 37.8 34.6 15.2 33.3
Head (calc.) 1991 100 0.36 0.47 2.88 0.47 0.51 0.05 100 100 100 100 100 100
(direct) 0.33 0.42 2.53 0.41 0.45 0.04
Combined Products
Product
Weight
g % Cu
Assays, (Pt, Pd, Au g/t), (Cu, Ni %)
Ni S Pt Pd Au Cu Ni
% Distribution
S Pt Pd Au
3rd Clnr Conc 140.2 7.04 4.49 4.36 14.3 2.52 5.23 0.31 86.9 65.5 34.9 37.9 72.4 47.0
2nd Clnr Conc 195 9.82 3.30 3.41 12.0 2.22 3.99 0.24 89.1 71.3 40.8 46.6 77.1 50.6
1st Clnr Conc 274 13.8 2.40 2.59 10.5 1.91 3.00 0.18 90.7 76.0 50.3 56.3 81.3 54.8
1st Cl & ClScv Conc 305 15.3 2.16 2.37 10.3 1.83 2.74 0.19 91.1 77.4 55.0 59.8 82.6 63.6
Rghr Conc 453 22.8 1.47 1.65 7.89 1.35 1.90 0.14 92.1 80.2 62.2 65.4 84.8 66.7
Cleaner Circuit Mass rec Upgrade Unit Recovery
Unit Performance 31% 3.05 2.64 1.81 1.87 2.76 2.27 95% 85% 68% 66% 88% 75%
Product Weight
Assays, % % Distribution
g % Cp Pn Po Gangue Cp Pn Po Gangue
3rd Cleaner Conc 140.2 7.0 13.0 12.3 15.0 59.7 86.9 67.8 19.1 4.6
3rd Cleaner Tail 55.2 2.8 0.81 2.65 13.0 83.5 2.1 5.8 6.5 2.5
2nd Cleaner Tail 78.8 4.0 0.43 1.41 16.6 81.5 1.6 4.4 11.9 3.5
1st Cleaner Scav Conc 31.0 1.6 0.28 0.92 21.8 77.0 0.4 1.1 6.2 1.3
1st Cleaner Scav Tail 147.7 7.4 0.14 0.44 6.91 92.5 1.0 2.5 9.3 7.4
Rougher Tail 1538 77.2 0.11 0.30 3.35 96.2 7.9 18.4 46.9 80.7
Head (calc.) 1990.5 100 1.05 1.28 5.51 92.2 100 100 100 100
Combined Products Cu+Ni PGE
3rd Cleaner Conc 7.0 13.0 12.3 15.0 59.7 86.9 67.8 19.1 4.6 8.9 8.1
2nd Cleaner Conc 9.8 9.57 9.56 14.4 66.5 89.1 73.5 25.7 7.1 6.7 6.5
1st Cleaner Conc 13.8 6.94 7.22 15.0 70.8 90.7 77.9 37.6 10.6 5.0 5.1
1st Cl + Sc Conc 15.3 6.27 6.58 15.7 71.4 91.1 79.0 43.8 11.9 4.5 4.8
Rougher Conc 22.8 4.27 4.58 12.9 78.3 92.1 81.6 53.1 19.3 3.1 3.4
Rougher Tail' 77.2 0.11 0.30 3.35 96.2 7.9 18.4 46.9 80.7