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目前,约有80％的铁矿石要经过选矿。为此,划分矿石工业类型和工艺品级;了解每一勘探块段矿石选矿指标及铁的品位,是很必要的。在确定矿石铁的总含量时,往往还不清楚铁与哪种矿物有关。所以,在苏联对一些铁矿床制定了一项新的指标;这项指标对矿石中磁铁矿的最低含量提出了要求。在成分复杂的矿石中,为了制定综合的选矿流程,确定其他含铁矿物的含量也很重要。
At present, about 80% of the iron ore to go through dressing. To this end, the division of ore industry type and crafts grade; understanding of each exploration block ore beneficiation indicators and grade of iron is necessary. In determining the total content of iron ore, it is often unclear which type of mineral is associated with iron. Therefore, a new indicator was developed for some iron deposits in the Soviet Union; this indicator sets the minimum requirement for magnetite in ores. In complex ores, it is also important to determine the level of other iron-bearing minerals in order to develop an integrated beneficiation process.