LKD-3对内蒙古某钼矿的浮选实验  

Experimental Study on Flotation of a Molybdenum Mine in Inner Mongolia by LKD-3

作　　者：李颖[1] 刘鸿 王舰[2] 马艺闻[1] 姜效军[1] 张琦[1] 崔波 LI Ying;LIU Hong;WANG Jian;MA Yiwen;JIANG Xiaojun;ZHANG Qi;CUI Bo(School of Mineral Processing Engineering,University of Science&Technology,Anshan,Liaoning,China;Chemical Engineering Institute,University of Science&Technology,Anshan 114051,Liaoning,China)

机构地区：[1]辽宁科技大学矿业学院,辽宁鞍山114051 [2]辽宁科技大学化工学院,辽宁鞍山114051

出　　处：《矿产综合利用》2025年第1期161-167,173,共8页Multipurpose Utilization of Mineral Resources

摘　　要：针对内蒙古某钼矿存在嵌布状态复杂、泥化现象严重、降低尾矿品位难等问题,采用LKD-3捕收剂对其进行浮选实验研究。实验分析结果表明,LKD-3对辉钼矿具有良好的选择性,LKD-3中2,3,5-三甲基萘与碳十醇发生协同作用,可更有效地吸附在钼矿物表面,增强钼矿物表面疏水性,稳定其与药剂的吸附作用,显著提高钼精矿的品位与回收率;浮选实验结果表明,采用LKD-3对钼品位0.164%的原矿进行一粗五精二扫的闭路浮选实验,获得钼品位53.44%,钼回收率91.79%的钼精矿,比同流程、同药剂制度下采用现场煤油为捕收剂浮选闭路实验时钼精矿品位增加6.48个百分点,回收率增加4.17个百分点。研究结果对提高难选钼矿生产指标、减少资源浪费等具有理论指导意义和实践价值。In view of the problems of complex dissemination state,serious argillization and difficult to reduce tailings grade of a molybdenum mine in Inner Mongolia,LKD-3 collector was used to conduct the flotation test.The experimental results show that LKD-3 has good selectivity to molybdenite,and the synergistic effect of 2,3,5-trimethylnaphthalene and carbon decanol in LKD-3 can more effectively adsorb on the surface of molybdenum minerals,enhance the hydrophobicity of molybdenum minerals,stabilize its adsorption with the reagent,and significantly improve the grade and recovery of molybdenum concentrate.Flotation test results show that the molybdenum concentrate with molybdenum grade of 53.44%and recovery of 91.79%is obtained by using LKD-3 to conduct a closed-circuit flotation test of one roughing,five cleaning and two scavenging for the raw ore with molybdenum grade of 0.164%.The grade of molybdenum concentrate increased by 6.48 percentage points and the recovery increased by 4.17 percentage points compared with the closed-circuit test using kerosene as collectors at the same process and reagent system.Research results have theoretical guiding significance and practical value for improving the production index of refractory molybdenum ore and reducing the waste of resources.

关 键 词：泥化钼矿 复合捕收剂 协同作用 

分 类 号：TD912[矿业工程—选矿]