某磁赤混合铁矿的柱式阳离子反浮选试验研究

Experimental Study on Cationic Reverse Flotation by Flotation Column of a Magnetite and Hematite Mixed Iron Ore

为了简化流程,降低成本,对某磁赤混合铁矿选厂的磁选精矿进行了柱式阳离子反浮选试验研究,包括浮选柱的条件试验和浮选流程试验。试验结果表明,以淀粉为抑制剂,GE-609为捕收剂,采用充填型微泡逆流接触式浮选柱,对于给矿品位为39.89%的混磁精矿,通过两次粗选、一次精选、一次扫选的柱式浮选流程,可获得铁精矿品位66.07%、回收率69.82%的良好指标,达到了简化药剂制度,降低浮选成本的目的。

In order to simplify process and reduce beneficiation cost, the cationic reverse flotation tests using the flo-tation column to the magnetic concentrate from a magnetite and hematite mixed iron ore processing plant were carried out. The conditions and process tests of the column cationic reverse flotation were done. The results showed that a final iron concentrate with TFe grade of 66.07% and iron recovery of 69.82% was obtained according to the flow- sheet of two roughings, one cleaning and one scavengings using GE-609 and the packed micro-bubble countercurrent contacting flotation column from the mixed magnetic concentrate feeding with iron grade of 39. 89% ,which realized the target of simplifying flotation reagent system and reducing flotation cost.