某高磷鲕状赤铁矿选矿试验研究

摘要

重庆某高磷鲕状赤铁矿,主要以鲕状赤褐铁矿形式存在.原矿TFe品位为38.52%,含P为1.1%.采用常规的机械选矿方法难以达到提铁降磷的目的;采用焙烧-磁选-反浮选工艺流程,可以获得铁精矿产率为46.16%,TFe58.15%,P 0.28%,铁回收率为69.37%的指标.%A high phosphorus oolitic hematite ore in Chongqing with a head grade of 38.52％ TFe and containing 1.1％ P, mainly exists in the form of oolitic hematite and limonite ore.When the normal mechanical mineral processing method is adopted,it’s difficult to reach the aim of iron increase and phosphorus decrease.However,when the technological flowsheet of roasting - magnetic separation - reverse flotation is adopted, the iron concentrate of 58.15％ TFe and 0.28％ P with a yield of 46.16％ and an iron recovery of 69.37％ are obtained.