低品位高含泥铜钼矿混合浮选试验研究  

Experimental Study on Mixed Flotation of Low-grade Copper-Molybdenum Ore with High Mud Content

作　　者：杨婉婷 蓝卓越[1,2,3] 简胜 谢峰 李云川 李雄 YANG Wanting;LAN Zhuoyue;JIAN Sheng;XIE Feng;LI Yunchuan;LI Xiong(College of Land and Resources Engi neering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Clean Utilization of Complex Nonferrous Metal Resources,Kunming 650093,China;National and Local Joint Engineering Research Center for Green Comprehensive Utilization of Metal Mine Tailings Resources,Kunming 650093,China;Kunming Metallurgical Research Institute,Kunming 650093,China)

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093 [3]金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,昆明650093 [4]昆明冶金研究院有限公司,昆明650093

出　　处：《有色金属(中英文)》2025年第3期441-451,共11页Nonferrous Metals

基　　金：云南省科技厅科技计划项目(202202AB080012)。

摘　　要：以普朗铜矿的低品位斑岩型硫化铜钼矿为研究对象,针对其原矿品位低、含泥量高、矿物成分复杂和嵌布粒度细等问题,在工艺矿物学研究的基础上,考察了磨矿细度、pH值、抑制剂种类及用量、捕收剂种类及用量和起泡剂MIBC用量对铜钼混合浮选的影响。最终确定了粗选条件:磨矿细度为-0.074 mm占65%,pH值为10,水玻璃用量150 g/t,捕收剂组合MCO+煤油(20+60) g/t,起泡剂MIBC用量50 g/t。此条件下,获得的铜钼混合粗精矿铜品位为6.77%,回收率为74.61%,钼品位为0.40%,回收率为75.94%。进一步通过对比粗精矿再磨位置、再磨细度及闭路浮选流程,最终确定粗精矿直接再磨至-0.038 mm占90%,采用粗磨-粗精再磨-一粗两精三扫-中矿混合返回粗选的闭路浮选流程,获得的铜钼混合精矿铜品位为23.32%,总回收率为80.50%,钼品位为1.20%,总回收率为74.56%。该研究成果为低品位高含泥铜钼矿资源的开发利用提供了参考。In this paper,aiming at the problems of low grade of raw ore,high mud content,complex mineral composition and fine distribution size,the low-grade porphyry copper and molybdenum sulfide ore of Pulang Copper Mine was studied.Based on the process mineralogy study,the effects of grinding fineness,pH value,type and dosage of inhibitor,type and dosage of collector and dosage of foaming agent MIBC on the mixed flotation of copper and molybdenum were investigated.Finally,the roughing conditions were determined:grinding fineness was-0.074 mm accounted for 65%,pH value was 10,water glass dosage was 150 g/t,the dosages of collector combination MCO and kerosene were 20 and 60 g/t,foaming agent MIBC dosage was 50 g/t.Under these conditions,the obtained copper-molybdenum mixed rough concentrate had a copper grade of 6.77%,a copper recovery rate of 74.61%,a molybdenum grade of 0.40%and a molybdenum recovery rate of 75.94%.By comparing the regrinding position,regrinding fineness and closed-circuit flotation process,it was determined that 90%of the coarse concentrate was re-ground directly to-0.038 mm,and the closed-circuit flotation process of coarse grinding-coarse refining re-grinding-one rough,two fine,three sweeping-medium ore mixture and back roughing was adopted.The copper grade of the copper-molybdenum mixed concentrate was 23.32%,and the total recovery rate was 80.50%.The molybdenum grade was 1.20%and the total recovery rate was 74.56%.The research results provide a reference for developing and utilizing low-grade and high-mud copper-molybdenum ore resources.

关 键 词：铜钼混合浮选 低品位 高含泥 药剂制度 流程结构 

分 类 号：TD925[矿业工程—选矿]