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黑色冶金生产的效率在很大程度上取决于铁矿原料的制备。铁矿产品的质量对冶金过程的强度和降低生产费用具有决定性影响。在生铁生产费用的构成中铁矿石部分的费用占65%。因而,为保证合理利用铁矿资源,必须提高铁矿产品的质量,即改善它的应用性能——提高含铁量和物理力学性能。近年来在选矿领域内所取得的技术和工艺成就使得在1970～1986年间在原矿含铁量降低2.8～3.5%的条件下,含铁量为65%以上的铁精矿产量从3140万 t 提高到6630万 t。
The efficiency of ferrous metallurgy production depends to a large extent on the preparation of iron ore raw materials. The quality of iron ore products has a decisive influence on the strength of metallurgical processes and on the reduction of production costs. The composition of the pig iron production costs account for 65% of the cost of the iron ore part. Therefore, in order to ensure the rational utilization of iron ore resources, it is necessary to improve the quality of iron ore products, that is, to improve its application performance - to improve iron content and physical and mechanical properties. In recent years, the technological and technological achievements made in the field of mineral processing have resulted in an increase in the iron concentrate content of 65% or more from 31.4 million tonnes in the period of 1970-1986 with a reduction of 2.8-3.5% To 66.3 million t.