含锰贫铁矿的铁与锰磁选富集

Magnetic Concentration of Mn and Fe in Manganese-containing Low Grade Iron Ore

在含锰贫铁矿含碳球团直接还原的岩相结构和物相组成研究的基础上，对富集含锰贫铁矿中的铁与锰的磁选方式进行了研究．结果认为，干式磁选对富集矿中铁的效果比较好，磁性产物中铁的品位最高可以达到82％，同时具有很高的金属化率，且干式磁选简单易行．高磁场强度的湿式磁选对富集矿中锰的效果比较好，可以达到铁锰矿的要求．

The microstructure of the carbon-containing pellet of manganese-containing iron ore after direct reduction has been studied. On the basis of the microstructure, two kinds of magnetic separation experiments were conducted: the wet and the dry. The result shows: The dry magnetic separation is suitable to concentrate iron. The best iron grade of the magnetic concentrate could reach 82%; The wet magnetic separationis suitable to concentrate manganese. The quality of the nonmagnetie concentrate could meet the requirementof metallurgy industry.