内蒙古某氧硫混合铜矿选矿试验研究

针对内蒙古氧硫混合铜矿高氧化率、高碱性脉石、高含泥量等特点,着重对控泥、强化活化、强化捕收以及浮选流程进行了系统的研究。在硫酸铵、硫化钠的联合作用下,在捕收剂强化捕收作用下,当磨矿细度-0.074 mm至85%时,采用一次粗选、三次扫选、两次精选、中矿顺序返回的闭路流程,取得了铜精矿品位20.65%、铜回收率85.49%的较好技术指标。

Study on the Beneficiation of a Sulfide - oxidized Copper Ore in Inner Mongolia

In light of the characteristics of a sulfide-oxidized copper ore in Inner Mongolia,such as high oxidation rate,high alkali gangue,and high content of slime,a systematic study was made for the ore on controlling mud,strengthening activation and collecting.Under the combined action of the ammonium sulfate,sodium sulfide and the action of strengthening collecting,when the percentage of the grinding particle less than 0.074 mm was over 85%,copper concentrate of Cu 20.65% with a recovery of 85.49% was obtained through the closed circuit process of once roughing,three times scavenging,twain cleaning and middlings returned in order.