某微细粒难选铁矿选矿试验研究  

Experimental Research on Mineral Processing of a Micro-fine Particle Refractory Iron Ore

作　　者：肖婉琴[1] 郑桂兵[1] 

机构地区：[1]北京矿冶研究总院,矿物加工科学与技术国家重点实验室,北京102628

出　　处：《有色金属（选矿部分）》2017年第5期46-50,共5页Nonferrous Metals（Mineral Processing Section）

基　　金：十二五国家科技支撑计划项目(2011BAB07B04)

摘　　要：某铁矿石中TFe为32.54%,MFe为23.26%,SiO_2为46.84%,该矿石具有铁矿物种类多、嵌布粒度细等特点。为了高效低能耗开发利用该矿石资源,采用"粗粒抛尾—阶段磨矿阶段弱磁选—精矿反浮选"工艺流程进行选矿试验,获得铁精矿中铁品位为65.13%,回收率为72.18%的试验指标。In the iron ore,iron content is 32.54%,magnet content is 23.26%,silica content is 46.84%.The ores consist of a variety of minerals,and useful minerals have fine granularity.For the sake of high efficiency and low energy consumption development and utilization of the iron ore resoureces.Tests ware made on separating iorn by a process of discarding tailing at coarser size,stage grinding,staged low intensity magnetic separation and reverse flotation concentrate of magnetic concentrate.The following metallurgy index was obtained： iron concentrate assaying 65.13% Fe with iron recovery of 72.18%.

关 键 词：铁矿 粗粒抛尾 弱磁选 反浮选 

分 类 号：TD913[矿业工程—选矿] TD951