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由于高品位富铁矿的储量急剧减少,导致大量含铁25～35%的贫铁矿需要加工处理。这种低品位矿石只能以含铁60～70%的精矿形式供给冶炼厂,为此,必须预先对其进行选矿处理。铁矿石的选矿是极繁重而耗能大的处理
Due to the sharp reduction in the reserves of high-grade iron-rich ore, a large amount of iron-poor iron ore containing 25-35% iron needs to be processed. This low-grade ore can only be supplied to smelters with 60-70% iron concentrate, for which it must be pre-beneficiated. Iron ore beneficiation is very heavy and energy-intensive treatment