摘要
某铜钼矿石中钼和铜含量较低,分别为0.081%和0.19%,且铜矿物嵌布粒度较细并与钼矿物密切共生,给两者分离带来一定困难。采用钼铜混合浮选—混合精矿精选1次后再磨再精选—铜钼分离流程对该矿石进行选矿试验,混合浮选时以石灰和水玻璃为调整剂、煤油和丁铵黑药为捕收剂,铜钼分离时以石灰、水玻璃和SK为调整剂、煤油为捕收剂,在1段和2段磨矿细度分别为-0.074 mm占70%和-0.045 mm占95%条件下,获得了钼品位为45.30%、钼回收率为84.16%的钼精矿和铜品位为14.28%、铜回收率为89.59%的铜精矿,为该矿石的开发提供了技术依据。
Molybdenum and copper content in a copper-molybdenum ores is low, Cu-content is 0. 081% and Mo-content is 0. 19%. The disseminated size of Cu minerals is fine and symbiosis with molybdenum ores, that take difficult to separation of Cu and Mo. By using the flowsheet of bulk flotation of Cu and Mo, regrinding and re-eoncentrantion after mixed concentrate cleaned, and then separation of Cu and Mo, the experiment index of concentrate grade of Mo at 45. 30%, the recovery of Mo at 84. 16%, the concentrate grade of Cu at 14. 28%, the recovery of Cu at 89. 59% were got on the condition of the size of the first and the second grinding each -0. 074 mm 70%, -0. 045 mm 95%, using lime, sodium silicate as modifier, using butylamine black agent and kerosene as collector in the mix-flotation, using lime, water glass and SK as the modifier, using kerosene as collector in the separation flowsheet of Cu and Mo.
出处
《金属矿山》
CAS
北大核心
2012年第6期68-71,78,共5页
Metal Mine
关键词
低品位铜钼矿石
铜钼混合浮选
再磨
铜钼分离
Low grade copper-molybdenum ore, Bulk flotation of Cu and Mo, Regrinding, Separation of Cu and Mo
