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| 高铁富金铜硫多金属矿选矿实验研究 |
| Study on the Mineral Processing Experiment of a High Fe Rich Au-Cu-S Polymetallic Ore |
| Received:March 25, 2019 |
| DOI： |
| 中文关键词: 选矿 黄铜矿 黄铁矿 磁铁矿 综合回收 |
| 英文关键词: beneficiation chalcopyrite pyrite magnetite high efficient recovery |
| 基金项目:云南省科技计划项目(2018IB028) |
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| 中文摘要: |
| 某高铁富金铜硫多金属矿铁品位为31.81%，金品位为1.37 g/t，铜品位为0.70%，硫品位为6.52%，矿石中71.83%的金赋存于铜矿物、黄铁矿、磁铁矿等矿物，而铜矿物、黄铁矿、磁铁矿的嵌布粒度均较粗，普遍在+0.04 mm。采用“优先浮选铜-活化浮选硫-硫尾磁选回收铁”联合工艺处理该矿石，并采用ZA作铜捕收剂，全流程实验获得金品位27.80 g/t，铜品位20.60%，金回收率59.05%，铜回收率83.29%的铜精矿；金品位2.16 g/t，硫品位45.07%，金回收率20.24%，硫回收率86.25%的硫精矿；金品位0.80 g/t，铁品位60.83%，金回收率14.25%，铁回收率45.90%的铁精矿。实现了矿石中金铜铁及载体矿物的高效回收。 |
| 英文摘要: |
| A high Fe rich Au-Cu-S polymetallic ore consists of 31.81% of Fe, 1.37 g/t of Au, 0.70% of Cu and 6.52% of S. 71.83% of gold in the mineral is deposited in copper minerals, pyrite and magnetite. The grains of copper minerals, pyrite and magnetite are relatively coarse, with a grain size of >0.04 mm. The ore sample was treated by a combined process of “selective flotation of copper - activated sulfur - sulfur tailing magnetic iron”, and ZA was used as copper collector. The resulted copper concentrate consisted of 27.80 g/t of Au and 20.60% of Cu, and the recovery was 59.05% and 83.29% for Cu and Au, respectively. The resulted sulfur concentrate grade was composed of 2.16 g/t of Au and 45.07% of S, and the recovery was 20.24% and 86.25% for Au and S, respectively. The iron concentrate included 0.80 g/t of Au and 60.83% of Fe., and the recovery was 14.25% and 45.90% for Au and Fe, respectively. The proposed method has high recovery for gold, copper, iron and sulfur in ores. |
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