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生产纯铁、特殊合金和铁粉要用优质铁矿原料。电池工业要求必须含杂质极低的精矿。一种精选磁铁矿精矿和重选铁精矿的最有前途方法之一,是能将伴生矿物杂质排入泡沫中的反浮选。对铁精矿质量的要求也随着高炉工作的强化而提高。因此,对富矿采用反浮选排除大部分脉石也是合理的。在某些场合下,对贫矿应该采用浮选法时,反浮选比正浮选具有很多优越性(降低捕收剂耗量、矿泥及硬度盐类影响较小)。
Production of pure iron, special alloy and iron powder to use high-quality iron ore raw materials. Battery industry requirements must contain very low concentrations of impurities. One of the most promising ways to concentrate magnetite concentrates and re-concentrate iron concentrates is to use anti-flotation, which removes associated mineral impurities into the foam. The requirements for the quality of iron concentrates also increase with the strengthening of blast furnace work. Therefore, the use of reverse flotation of rich ore to rule out most of the gangue is also reasonable. On some occasions, reverse flotation has many advantages over flotation (reducing collector consumption, less effect of slime and hardness salts) when flotation should be used for lean mines.