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用电选方法处理十字石精矿,以排除其中的电气石、钛铁矿以及石英等主要杂质。精矿预先加热50—200度能改善分选效率。在鼓式电晕分选机10千伏电场、200转/分条件下,得到含电气石81.1—88.8%的精矿,回收率为5—25.8%;用静电方法分选钛铁矿最有效,在场强14—25千伏下,得到含钛铁矿35—71%、回收率为81—95.5%精矿;用类似的方法分选石英也是可行的,并且十字石的损失是小的。
Use electricity election method to deal with the cross stone concentrate to exclude the tourmaline, ilmenite and quartz and other major impurities. Pre-heated concentrate 50-200 degrees to improve the sorting efficiency. In the drum corona sorter 10 kV electric field, 200 rev / min conditions, get 81.1-88.8% with tourmaline concentrate, the recovery rate of 5-25.8%; electrostatic separation of ilmenite most effective , At a field strength of 14-25 kV, 35-71% of the ilmenite-containing ore is recovered with a recovery of 81-95.5% concentrate; quartz is also feasible for sorting in a similar manner and the loss of the spar is small .