Laterite Leach Tests

More documents

Recommendations

Info

Thickening and Vacuum Filtration Evaluation of Westmoreland Uranium Leach Residue Slurry Laramide Resources ___________________________________________________________________________________ 8.1.2 Cake Formation Rate The rate of cake formation slows as the cake thickness and therefore cake loading increases. A log-log plot of cake formation rate vs. cake loading (W) should give a straight-line for constant conditions of feed solids concentration, temperature, and particle size distribution. This data is illustrated below in Graph 8.1.2. 8.1.3 Cake Moisture May 2011 Graph 8.1.2 – Westmoreland Leach Residue Cake Weight v Form Time Results on a wide variety of materials have shown that the following correlation factor is very useful for correlating cake moisture content data: Where: Correlation Factor = (CFM/ft 2 )(∆P/W)(Θd/µ) CFM/ft 2 = air rate through filter cake measured at the downstream pressure vacuum. ∆P = Pressure drop across cake. W = Dry cake weight /unit area. Θd = Dry time during the filter cycle. µ = Viscosity of liquid phase. CONFIDENTIAL Page 19
Thickening and Vacuum Filtration Evaluation of Westmoreland Uranium Leach Residue Slurry Laramide Resources ___________________________________________________________________________________ There will always be some degree of data scatter in the moisture content correlation. Any point selected on the best-fit curve correlation will represent an average operation condition. It is often useful to use the simplified form of the correlation factor Simplified Factor = Θd/W The most convenient moisture correlation is a plot of Cake Moisture vs Θd/W which gives the moisture achievable for different drying times across a range of cake thicknesses. . The moisture correlation for this material is shown in Graph 8.1.3 below. May 2011 Graph 8.1.3 – Westmoreland Leach Residue Cake Moisture v Correlation Factor It can be seen that cake moistures of 18% can be achieved with sufficient drying time. Cake formation moisture is approximately 26.5%. CONFIDENTIAL Page 20
Page 1:
AUSTRALIAN NUCLEAR SCIENCE AND TECH
Page 4 and 5:
ANSTO Minerals Report C1206 to Lago
Page 6 and 7:
Page 8 and 9:
Page 10 and 11:
Page 13 and 14:
Page 15:
Page 18 and 19:
Page 20 and 21:
Page 22 and 23:
Page 24 and 25:
Page 26 and 27:
Page 28 and 29:
Page 30 and 31:
Page 32 and 33:
Page 34 and 35:
Page 36 and 37:
Page 38 and 39:
Page 40 and 41:
Page 42 and 43:
Page 44 and 45:
Page 46 and 47:
Page 48 and 49:
Page 50 and 51:
Page 52 and 53:
Page 54 and 55:
Page 56 and 57:
Page 58 and 59:
Page 60 and 61:
Page 62 and 63:
Page 64 and 65:
Page 66 and 67:
Page 68 and 69:
Page 70 and 71:
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
Page 95 and 96:
Page 97 and 98:
Page 99:
Page 102 and 103:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119:
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Page 144 and 145:
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156 and 157:
Page 159 and 160:
Page 161:
Page 164 and 165:
Page 166 and 167:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182: ANSTO Minerals Report C1206 to Lago
Page 211: ANSTO Minerals Report C1206 to Lago
Page 214 and 215: Thickening and Vacuum Filtration Ev
Page 238 and 239: Thickener Test Summary for Laramide
Page 240 and 241: Thickener Test Summary for Laramide
show all

Laterite Leach Tests

Create successful ePaper yourself

Delete template?

Save as template?