摘要
内蒙古某铜钼矿矿石中主要有价元素为钼和铜,其品位分别为0.032%和0.165%;铜、钼的氧化率分别为2.44%、0.92%,为原生硫化矿石。根据矿石的特性以及嵌布特性、嵌布粒度,试验对比了两种选矿工艺方案,一种是"铜钼硫混合浮选"方案,另一种是"铜钼部分优先浮选—铜钼硫混合浮选"方案;采用铜钼部分优先浮选—铜钼硫混合浮选—铜钼分离流程,钼粗精矿再磨、多次精选的原则流程。选矿闭路试验所获得的铜精矿产率为0.645%、品位21.66%、回收率84.69%,钼精矿产率0.055%、品位46.78%、回收率80.89%。
A copper-molybdenum ore containing valuable minerals chalcopyrite and molybdenite from Inner Mongolia province assays 0. 165% Cu and 0. 032% Mo, the oxidation ratio of copper and molybdenum being 2.44% and 0.92% respectively. Based on the ore property, dissemination characteristic and grain size of the min- erals, two different mineral processing flowsheets are cpompared, one is a process of bulk flotation, the other is a process of Cu-Mo part-selective and part-bulk flotation. With the processing flowsheet of Cu-Mo part-selective and part-bulk flotation, regrinding of molybdenum rough concentrate followed by multi-stage cleaning, the locked-cycle test generates a Cu-concentrate assaying 21.66% Cu with a mass pull of 0. 645% and a Cu-recovery of 84.69% , and a Mo-concentrate assaying 46.78% Mo with a mass pull of 0. 055% and a Mo-recovery of 80. 89%.
出处
《矿冶》
CAS
2014年第4期35-38,共4页
Mining And Metallurgy
关键词
抑制剂
铜钼分离
黄铜矿
辉钼矿
depressant
copper-molybdenum separation
chalcopyrite
molybdenite
