采用疏水聚四浮选工艺脱除山西阳泉铝土矿高铝浮选尾矿中的微细粒含铁、钛杂质矿物，最终产品中的ＴＩＯ２和Ｆｅ２Ｏ３含量分别降至１．８８％和０．８５％，使其可直接用作合成莫来石的原料．试验研究表明，疏水聚团浮选较直接浮选工艺可显著提高微细粒杂质矿物的脱除率． Hydrophobic polytetrafluoroethylene (FTS) flotation process was used to remove the fine-grained iron and titanium impurities in the high-aluminum flotation tailings of Shanxi Yangquan bauxite. The contents of TIO2 and Fe2O3 in the final product were reduced to 1.88% and 0.85%, respectively %, So that it can be directly used as raw materials for the synthesis of mullite. Experimental studies show that the hydrophobic flotation than the direct flotation process can significantly improve the removal rate of fine-grained impurities in minerals.