Laterite Leach Tests

ANSTO Minerals Report C1206 to Lagoon Creek Resources – Westmoreland Deposits
Run LC16 A Ferric Addition Lagoon Creek Uranium Project Oxidant: 10% Sodium Permanganate ICP/OES Request No: 0
pH 1.5 Solids: 1000 g Jack Leach Duration: 24 h ICP/MS Request No: 0
Leach Liquor Matrix: 818 g Sydney Tap Water Temperature: 40ºC XRF Request No: 0
Slurry: 55% ORP: 500 mV
DNA Request No: 0
Fe Addition: 1.0 g/L as 3.85 g Fe2(SO4)3.7H2O pH: 1.5 Date: 10/09/2010
Time Temp. ORP
Acid
Free Acidity
Addition
Acid
Cons.
Oxidant
Addition
Fe K
Mn
(h) (°C) (mV) (kg/t) (g/L H2SO4) (kg/t) (kg/t)
Head 929
3+
Leach Conditions
Uranium Assay U Extraction
(ppm U3O8) (%)
Solution Assays (mg/L)
Sample ID
pH DNA DNA Al As Ca Fe Mg
Na P
LC16 A1 2 40 1.51 505 3.4 2.9 1 0.00 148 84.1 86 31 93 1117 747 57 22 16 28 31 2087 54 789 12
LC16 A2 4 40 1.51 497 3.4 2.9 1 0.00 128 86.2 101 35 98 1187 729 69 26 19 28 34 2237 76 818 13
LC16 A3 8 40 1.5 495 3.9 3.2 1 0.03 97 89.5 129 36 100 1256 719 90 25 34 35 37 2433 110 842 16
LC16 A4 12 40 1.51 495 4.0 3.2 1 0.10 99 89.4 158 36 107 1310 759 112 34 58 49 41 2523 139 828 18
LC16 A5 24 40 1.53 495 4.0 3.2 1 0.14 83 91.0 228 36 120 1427 846 172 32 98 65 47 2788 231 871 22
24 h MS 803 0
U Accountability 92.5%
Comments:
Element Concentration (wt.%)
Sample ID
Al As Ba Bi Ca Ce Cr Fe K Mg Mn Mo P Pb S Si Sr Th Ti
U
(ppm)
U3O8 (ppm)
V Y Zr
Head 1.05 0.006 0.009