黄金科学技术 ›› 2018, Vol. 26 ›› Issue (3): 334-341.doi: 10.11872/j.issn.1005-2518.2018.03.334
石贵明1,2,周意超1,李明1*
SHI Guiming 1,2,ZHOU Yichao 1,LI Ming 1
摘要: 对河南省某低品位难选细粒金红石与钛铁矿进行了矿物学及分选试验研究。矿石中金红石与钛铁矿均有回收利用价值,金红石矿物呈他形、半自形柱状,多以集合体形式沿脉石矿物的片理方向排列分布,钛铁矿连生体呈细小的粒状被角闪石、黑云母和石英包裹。目的矿物金红石嵌布粒度较细,属细粒、微细粒不均匀嵌布,粒度区间跨度较大,一般为0.037~0.074 mm。在原矿TiO2含量为2.10%,Fe2O3含量为9.69%的情况下,经重选—磁选—酸洗—浮选的原则流程可得到金红石精矿品位为88.25%、回收率为97.80%,钛铁矿精矿品位为11.76%、回收率为89.57%的较好指标。其中重选为一粗一精,强磁选扫二、扫三中矿合并再重选的流程;磁选为一粗四扫,扫一、扫四中矿与粗选精矿合并成磁选精矿进行酸洗;浮选为一粗两精两扫流程。研究结果对难选低品位微细粒金红石矿的综合利用具有一定的指导意义。
中图分类号:
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