Comprehensive Recovery of Valuable Resources from Tailings in Tailings Pond of Daxigou Mine
Experimental studies on comprehensive recovery of valuable resources in iron-dressing tailings with TFe grade of 15.70%were conducted by adopting processes consisting of Cu-S bulk flotation,high intensity magnetic separation to reclaim Fe minerals,roasting reduction of Fe minerals,and shaking table gravity separation and flotation separation to recover barite and mica.As a result,the experiment produced an iron concentrate with TFe grade of 60.17%,S content of 0.11%and iron recovery of 66.74%,a sulfur concentrate grading of 47.86%S at 66.58%recovery,a copper concentrate grading 19.79%Cu at 31.24%recovery,a barite rough concentrate with BaSO4 content of 86.96%and recovery of 9.15%,and a mica concentrate with K2O content of 6.66%and recovery of 6.63%,respectively.In this way,comprehensive utilization of tailings can thus be realized.
tailings pondcomprehensive utilization of tailingscomprehensive recoveryiron concentrate