海城某菱镁矿石反浮选试验研究  

Experimental Study on Reverse Flotation of Magnesite Ores in Haicheng

作　　者：郗悦 代淑娟 郭小飞 Xi Yue,Dai Shujuan,Guo Xiaofei(School of Mining Engineering, University of Science ＆ Technology Liaoning,Anshan, Liaoning 11405)

机构地区：[1]辽宁科技大学矿业工程学院,辽宁鞍山114051

出　　处：《非金属矿》2018年第3期76-78,共3页Non-Metallic Mines

基　　金：辽宁省自然科学基金(201602387)

摘　　要：本试验原矿为辽宁海城地区某低品位高硅型菱镁矿石,其MgO品位为92.96%、SiO_2含量为2.35%,主要有用矿物为菱镁矿,脉石矿物主要为石英,其次是白云石、滑石、斜绿泥石等。通过采用1次粗选2次精选的反浮选流程,在磨矿细度-0.074 mm含量为85%,pH值为5,调整剂六偏磷酸钠用量150 g/t,捕收剂醚胺用量150 g/t的条件下,最终获得精矿MgO品位97.68%、产率76.43%、SiO_2含量0.25%的产品指标。The test ore grade is a low-grade high-silicon magnesite ore with a grade of 92.96% and SiO2 content of 2.35% in Haicheng area, Liaoning Province. The main useful mineral is magnesite, gangue minerals are mainly quartz, followed by dolomite, talc, mop chlorite and so on. Through the use of a rough selection twice the anti-flotation process, grinding fineness-0.074 mm mass fraction of 85%, pH value of 5.0, adjusting the amount of hexametaphosphate 150 g/t, the collector ether amine under the condition of 150 g/t, the final grade of MgO is 97.68%, the yield is 76.43% and the grade of SiO2 is 0.25%.

关 键 词：菱镁矿 反浮选 调整剂 捕收剂 

分 类 号：TD97[矿业工程—选矿]