| 夏 瑜.老挝班康姆某矿床铜金矿石工艺特性研究[J].地质与勘探,2017,53(1):198-206 |
| 老挝班康姆某矿床铜金矿石工艺特性研究 |
| Study on ore processing properties of a copper and gold deposit in Pangkuam, Laos |
| 投稿时间：2016-04-25 修订日期：2016-10-14 |
| DOI：10.12134/j.dzykt.2017.01.021 |
| 中文关键词: 铜金矿石 矿石工艺特性 平衡配分 铜、金回收率 老挝 |
| 英文关键词: copper and gold ore, mineral processing properties, equilibrium distribution, copper and gold ore recovery ratio, Laos |
| 基金项目: |
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| 摘要点击次数: 1806 |
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| 中文摘要: |
| 老挝班康姆某矿床位于老挝沙耶武里省巴莱县西南部，属于琅勃拉邦—黎府成矿带。前人已完成矿床铜、金资源量的预测，尚未对矿石工艺特性进行研究。本文利用化学分析、光学显微鉴定、X射线电子能谱分析、物相分析等方法，对该矿床铜金矿石的工艺特性进行了系统研究。研究确定矿石属原生硫化物型铜（伴生金）矿石，可选性好。选矿回收的目标元素为Cu、Au，品位分别为0.74%、0.94g/t。Cu主要以黄铜矿形式存在；Au主要以银金矿形式存在,以包裹金为主。黄铜矿为回收Cu、Au的目标矿物。当磨矿细度为-0.074mm占70%±之时，选矿实验得到Cu回收率90.8%、Au回收率63.5%，铜精矿产品达到国家二级标准。以上结果表明，矿石工艺矿物学研究对选矿实验具有良好的指导作用。 |
| 英文摘要: |
| The Pangkuam deposit is located in the southwest of Paley county, Sayaboury Province, Laos, which belongs to the geological structure of the Luang Prabang-Loei metallogenic belt. The copper and gold resources prediction of this deposit has been done in previous work, while its ore processing characteristics remain unknown. Based on chemical analysis, optical microscopy identification, X-ray electron energy spectrum analysis and phase analysis, this work conducts a systematic research on the Cu-Au ore processing characteristics. The Pangkuam ore is determined to be of a primary sulfide type (associated gold) ore with good washability. Target elements for mineral processing are Cu and Au elements with corresponding grades of 0.74% and 0.94g/t, respectively. Copper exists principally as chalcopyrite while gold is dominated by electrum in inclusion Au. When grinding fineness is 70% of -0.074mm, the recovery ratios of copper and gold are 90.8% and63.5%，respectively, and the copper concentrate product reaches the national standard of second class. The above results show that the study of ore processing characteristics can direct the ore dressing and smelting experiments. |
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