Abstract
In this research, a fine disseminated gold ore in Yunnan, After four ore exploration tests of chemical pretreatment, get a reasonable oxidation-leaching process that: W-1 (60 kg/t) and M-3 (45 kg/t) used in conjunction with inflated amount of 0.5 m3/h, under the condition of 75°C, stirring pretreated for 24 h, the ore sample after pretreatment was filtered to take a certain amount ,at the condition of normal temperature and pressure, NH4SCN 0.6 mol/L, KMnO4 10 g/L, slurry solid ratio of pulp is 4:1, stirring time is 5 h, pH value is 3. Under these conditions, the gold leaching rate up to 82.26%.
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