在深入分析研究铝土矿的工艺矿物学特性的基础上 ,吸收了阶段磨矿一次选别工艺和分级 -浮选工艺的优点 ,应用选矿先进理论和技术 ,新近开发出一种新工艺 ,创造性地把闪速浮选原理和粗细分选技术应用于铝土矿选别过程 ,获得理想结果 ,精矿产率达到 83.0 9%,铝硅比 12 .6 1,三氧化二铝回收率 90 .39%。 On the basis of further analysis of the technological mineralogical characteristics of bauxite, the advantage of primary sorting process and grading-flotation process of grinding stage is absorbed. Based on the advanced theories and techniques of dressing, a new process, a new process The flash flotation principle and thickness sorting technology was applied to bauxite sorting process, and the ideal result was obtained. The yield of concentrate reached 83.0%, the ratio of aluminum to silicon was 12.61, and the recovery rate of aluminum oxide was 90.39 %.