某废菌在铝土矿反浮选中的抑制效果

The Effect of an Industry Waste bacteria on Diaspore Reverse Flotation

一水硬铝石的有效抑制是低铝硅比铝土矿反浮选脱硅的关键。以某工业废菌为一水硬铝石抑制剂,考察其在不同条件下对一水硬铝石和高岭石的抑制效果。研究表明,该菌对一水硬铝石抑制效果明显,而对高岭石上浮的影响不大。经对比试验,废菌对一水硬铝石作用效果明显优于传统的淀粉类抑制剂,在适宜的条件下,可改善一水硬铝石和高岭石的分离效果。此外,还对工业废菌在铝硅分离中的作用机理进行了研究。

The depressing effect on diaspore is the key of removing silicon from bauxite of low Al2 O3/SiO2 by reverseflotation. The effect on diaspore and kaolinite were investigated on the different condition by using a industry waste bacteria as depressor. The results show,it is obvious that the depressing effect of the industry waste bacteria on diaspore, but the bacteria has little effect on kaolinite. The effect of industry waste bacteria is better than starch which is usually used as depressor of diaspore by comparing experiment, so index of separating aluminum and Silicon is improved by using industry waste bacteria as depressor. The function mechanism of the industry waste bacteria on separating aluminum and Silicon was studied.