河南铝土矿选择性磨矿的试验研究

Experimental Research on the Selective Grinding of Henan Bauxite

以铝硅比为5～6的河南铝土矿为原料进行了铝土矿的选择性磨矿试验.破碎的产品中Al2O3在粗粒级发生一定程度的富集.球磨机选择性磨矿的试验表明河南铝土矿的选择性磨矿效果较好,可以采用一定的分级工艺直接回收磨矿产品中高铝硅比的粗级别部分,细粒级进入浮选,从而有望实现铝土矿选矿的突破.

Selective grinding experiments are made with Henan bauxite of A/S 5～6 as feed. In the crushing product, Al2O3 is enriched in the coarse size range to some extent. The selective grinding experiments of ball mill show that Henan bauxite has good selectivity in grinding so that some classification process can be used to separate the coarse portion with high A/S directly from the grinding products and send the fine portion to the flotation process. Breakthrough is expected in mineral processing of bauxite.