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| 纳米比亚某含银硫化铜矿选矿试验研究 |
| Experimental study on beneficiation of a silver-bearing copper sulfide ore in Namibia |
| Received:January 22, 2022 |
| DOI： |
| 中文关键词: 有色金属冶金 浮选 硫化铜矿 银 回收率 |
| 英文关键词: nonferrous metallurgy flotation copper sulphide ore silver recovery rate |
| 基金项目:财政部、国土资源部国外矿产资源风险勘查专项“纳米比亚KARAS地区EPL4234矿权区铜矿详查”(201211BO1000115) |
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| 中文摘要: |
| 纳米比亚Karas矿区罗雷铜矿区的原生矿铜主要以黄铜矿、斑铜矿等硫化铜矿物形式存在，银分别以银黝铜矿为主的独立银矿物和以黄铜矿为载体的载体银矿物形式存在，铜、银品位分别为0.60%和3.03 g/t。浮选试验结果表明，矿样适当细磨至-0.074 mm占80%，以石灰做调整剂，Z200做捕收剂，在矿浆pH值为8的条件下，可获得铜品位22.3%，银品位61.8 g/t的含银铜精矿，铜、银回收率分别为90.6%和51.8%。 |
| 英文摘要: |
| The primary copper ore in Roray copper mine area of Karas mining area in Namibia mainly exists in the form of copper sulfide minerals such as chalcopyrite and bornite. Silver exists in the form of independent silver minerals dominated by silver tetrahedrite and carrier silver minerals supported by chalcopyrite. The grades of copper and silver are 0.60% and 3.03 g/t, respectively. The flotation test results show that the silver-containing copper concentrate contains 22.3% of copper and 61.8 g/t of silver when the ore sample is properly ground to -0.074mm, accounting for 80%, using lime as the regulator and Z200 as a collector, under the condition of pulp pH 8, and that the recovery rates of copper and silver are 90.6% and 51.8%, respectively. |
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