摘要
湖北某磁铁矿为含TFe 32.95%,S 3.89%的高硫磁铁矿,主要含硫矿物黄铁矿与磁铁矿相互嵌生。若获得高品质的铁精矿,必须进行细磨才能使磁铁矿完全单体解离。采用两段磨矿—两段磁选工艺流程处理后,可得到含TFe 69.07%,回收率88.71%,S 0.22%的铁精矿,获得了较好的选矿指标,表明该工艺具有较好的应用前景。
Magnetite with iron grade of 32. 95% and sulfur grade of 3. 89% has the property of high sulfur in Hubei. The main sulfur mineral which embeds with magnetite is pyrite. So the fine grinding to make magnetite monomer dissociation is an effective way to obtain the high quality iron concentrate. The final iron concentrate after the two-stage grinding and two-stage magnetic separation had a well index with the iron grade of 69. 07%,the recovery of 88. 71%,and the sulfur grade of 0. 22%. The results show great application prospect of this process.
出处
《资源环境与工程》
2015年第2期224-227,共4页
Resources Environment & Engineering
关键词
高硫磁铁矿
两段磨矿
两段磁选
提铁降硫
high-sulfur magnetite
two-stage grinding
two-stage magnetic separation
iron improvement and sulfur reduction
