摘要
为了缓解我国铁矿资源短缺的压力,对某赤铁矿尾矿进行了再选研究。根据其矿石性质,进行了磨矿条件试验、对磁选获得磁选粗精矿进行L9（3^4）正交试验确定反浮选试验的最佳浮选条件。试验结果表明,采用＂磨矿-一段弱磁-一段强磁—阴离子反浮选＂工艺,可将入选尾矿的品位从21.79%提高到65.42%,回收率达到84.69%,获得品位较高的铁精矿,实现了资源的有效利用。
In order to alleviate the pressure of the shortage of iron ore resources in China,study of tailings retreatment was carried out.Study on the ore petrology properties of the tailings,and grinding ore experimental conditions,magnetic separation and reverse flotation test.The optimum flotation conditions of reverse flotation tests were determined by L9（ 3^4） orthogonal test.Test results show that＂grinding-magnetic separation-anion reverse flotation＂method can be selected,the grade of the tailings from 21. 79%increase to more than 65%,recovery rate reached 84%,finally got in line with the requirements of iron concentrate,realize the effective use of resources.
出处
《矿产综合利用》
CAS
北大核心
2016年第5期97-100,共4页
Multipurpose Utilization of Mineral Resources
基金
中央高校基本科研业务费专项资金资助项目(FRF-TP-15-049A1)
中国博士后科学基金资助项目(2015M570937)
关键词
赤铁矿
尾矿
磨矿
磁选
反浮选
Hematite
Tailings
Grinding
Magnetic separation
Reverse flotation
