摘要
云南某铁矿铁平均品位为38.1%,主要以赤铁矿和褐铁矿形式存在,有害元素硫、砷的含量极低,砷含量为0.002%,硫含量为0.01%,对矿石的利用不造成影响。矿石中磷含量高,磷平均含量为0.44%对矿石的影响较大。采用强磁选和重选方法对矿石进行了研究,探索一个合理可行的流程,在提高铁的品位和回收率的基础上降低磷和硅的含量。
The average iron grade of an iron ore in Yunnan is 38.1% , mainly occurring in the form of hematite and limonite with very low content of harmful elements sulfur （0.002%） and arsenic （0.01%） , which has no im- pact on the utilization of the ore. The phosphorus content in the ore is high with average content of 0.44% with rel- atively large influence on the ore. High-intensity magnetic separation and gravity separation are adopted to study the ore and a feasible process is explored, which can improve the grade and recovery of iron and reduce the content of silicon and phosphorus as well.
出处
《矿冶》
CAS
2012年第3期28-29,69,共3页
Mining And Metallurgy
关键词
氧化铁
重选
强磁选
iron oxide
gravity separation
high-intensity magnetic separation
