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亲水性脉石矿物的严重机械夹带会对微细矿粒浮选分离产生负面影响,而且目前没有有效可行的方法来消除细粒脉石夹带的影响。本研究探索了一种新的方法:即使用高分子聚合物抑制剂减少在黄铜矿浮选中细粒石英的夹带量。其原理是,使用具有絮凝作用的聚合物抑制剂,不仅可以使需要被抑制的矿物具有亲水性,而且还可以增大它们的颗粒尺寸,因而就能减少浮选气泡夹带和机械夹带。试验发现,某些聚合物在不影响黄铜矿浮选的情况下,能抑制和絮凝细粒石英。使用聚合物时的分选效果比不使用时有显著的改善。
Severe mechanical entrainment of hydrophilic gangue minerals can have a negative impact on fine mineral flotation separation, and there is currently no effective way to eliminate the influence of fine gangue entrainment. This study explored a new approach: the use of high molecular weight polymer inhibitors to reduce entrainment of fine-grained quartz in flotation of chalcopyrite. The principle is that the use of a polymeric inhibitor with flocculation not only renders the minerals to be inhibited hydrophilic, but also increases their particle size, thereby reducing flotation bubble entrainment and mechanical entrainment. The test found that some polymers can inhibit and flocculate fine-grained quartz without affecting the flotation of chalcopyrite. The sorting effect when using the polymer was significantly improved compared to when not in use.