Feasibility Study and Technical Report - Pretivm

Table 13.33Conventional Thickening Test Results for Flotation TailingsFeedSolids(%)Dose(g/t)FlocculantConcentration(g/L)Rise Rate(m 3 /m 2 /h)Maximum TestDensity(%)Time(min)SolidsDensity(%)Unit Area(m 2 /t/d)7.5 30.0 0.1 9.71 63.3 150 61 63 65 0.50 0.52 0.537.5 35.0 0.1 10.07 66.0 150 61 63 65 0.40 0.42 0.437.5 40.0 0.1 9.69 66.0 150 61 63 65 0.41 0.42 0.4410.0 35.0 0.1 8.14 64.9 120 61 63 65 0.41 0.43 0.4515.0 30.0 0.1 4.96 65.2 150 61 63 65 0.43 0.45 0.4715.0 35.0 0.1 4.44 65.2 120 61 63 65 0.42 0.43 0.4515.0 40.0 0.1 3.39 62.8 150 61 63 65 0.43 0.45 0.4715.0 45.0 0.1 3.10 62.8 150 61 63 65 0.42 0.44 0.4620.0 35.0 0.1 0.84 65.2 180 61 63 65 0.72 0.76 0.80Figure 13.29Flotation Concentrate CCD Wash Test ResultsPredicted Solube Values recovery99%97%95%93%91%T:T=0.25T:T=0.5T:T=0.75T:T=1T:T=1.25T:T=1.5T:T=1.75T:T=2T:T=2.2589%1 3 5 7Counter Current Decantation Wash StagePretium Resources Inc. 13-51 1291990200-REP-R0012-02Feasibility Study and Technical Report on the BrucejackProject, Stewart, BC