Method for treating laterite nickel ore through direct reduction and magnetic separation

The invention relates to the field of metallurgy, in particular to a method for treating laterite nickel ore through direct reduction and magnetic separation. By means of the method for treating the laterite nickel ore through direct reduction and magnetic separation, nickel and iron in the low-grade laterite nickel ore can be enriched effectively. Compared with a common direct reduction and magnetic separation treating method, by means of the method, a nickel-iron alloy can be obtained through reduction at the relatively-low temperature, the enriched nickel and iron are separated out through the magnetic separation manner, finally the rest of residues can be used as a new raw material for preparing a raw material for cement or building bricks, and the purpose of comprehensively using the laterite nickel ore is achieved. 本发明涉及冶金领域，具体涉及种利用直接还原-磁选处理红土镍矿的方法。本发明利用直接还原-磁选处理红土镍矿的方法，能够有效富集低品位的红土镍矿中的镍和铁。该方法与常用的直接还原-磁选处理方法相比，此方法可在相对较低的温度下还原出镍铁合金，利用磁选的方式将富集的镍铁选出，而最后剩余的残渣还作为新的原料制备水泥或建筑用砖等原材料，达到红土镍矿综合利用的目的。