低品位铬铁矿石的重选存在两个主要的困难。由于铬铁矿原矿具有脆性和易碎的性质,在破碎和磨碎过程中趋向产生过量的细颖粒,用重选法来回收这些细级别的矿物是困难的;对它们的要求也不高。第二个困难是,因为在块状的与浸染状的矿石之间,其比重差很小,结果,只有通过使用多种不同的诸如跳汰机、摇床、螺旋选矿机等水力分选机械以及其它比较先进的工艺过程,才能较好地回收这些铬铁矿。在特罗多斯(Troodos)地区的铬铁矿床是Hellenic采矿公司最近发现的。由于铬铁矿精矿价格较高,从而需要使铬铁矿选矿过程现代化,以实现有效地去处理所开采的矿石。对于直径≥1毫米的颗粒需要广泛应用重介质选矿法,对于较细粒级的部分则用跳汰机和摇床 There are two major difficulties with the re-election of low grade chromite. Due to the brittle and brittle nature of chromite ore, tending to produce excess fine particles during crushing and grinding, it is difficult to re-classify these fine grades with re-election; their requirements are not high . The second difficulty is that because of the small specific gravity difference between lump and disseminated ores, only by using a number of different hydraulic sorting machines such as jiggers, shakers, screw mills and the like And other more advanced process, in order to better recovery of these chromite. The chromite deposit in the Troodos area was recently discovered by Hellenic Mining. Because chromite concentrates are expensive, there is a need to modernize the chromite beneficiation process so that the mined ore can be effectively treated. For particles ≥1 mm in diameter, heavy-medium beneficiation is required for a wide range of applications, with jiggers and shakers for finer-grained fractions