铜冶炼废镁砖尾渣浮选试验研究

某铜冶炼转炉大修拆除的废镁砖经重选回收铜、金、银、铅等有价金属后, 对其尾渣进行了浮选回收有价金属的试验研究。通过优化磨矿细度、浮选矿浆浓度、药剂制度等, 获得了含铜26.96%、含银2 158.0 g/t 、含金6.80 g/t、含铅4.98%的铜精矿, 铜、金、银、铅回收率分别为89.97%、82.12%、89.75%和86.07%, 各种有价金属得到了全面高效地回收, 达到了综合回收的目的。

Flotation Treatment of Slag Tailings from Processing of Magnesium-bearing Copper Smelting Bricks

After adopting gravity separation to recycle valuable minerals including Cu, Au, Ag and Pb from the magnesium-bearing bricks dismantled from a copper smelting converter, the residue was processed to recovery valuable metal resources by a flotation approach. After optimization of the grinding parameters, the pulp concentration and reagent scheme, a copper concentrate with Cu grade of 26.96%, and with Ag, Au and Pb content of 2 158.0 g/t, 6.80 g/t and 4.98%, respectively, was collected. The recoveries for Cu, Au, Ag and Pb attained 89.97%, 82.12%, 89.75%, 86.07%, respectively. All these valuable metals were reclaimed effectively, thus the goal for comprehensive recovery was actualized.