| 贵州某铜尾矿铜金回收浮选试验 |
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| 引用本文： | 刘豹,王梓,孙乾予,莽昌烨. 贵州某铜尾矿铜金回收浮选试验[J]. 金属矿山, 2015, 44(1): 157-160 |
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| 作者姓名： | 刘豹 王梓 孙乾予 莽昌烨 |
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| 作者单位： | 辽宁工程技术大学矿业学院，辽宁 阜新 123000 |
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| 摘 要： | 贵州某铜尾矿-200目含量为40.17%，主要金属矿物有黄铜矿、黄铁矿、磁黄铁矿、斑铜矿，并伴生有少量的金、银。黄铜矿与黄铁矿、磁黄铁矿等共生关系密切，呈细粒、微细粒不均匀嵌布，部分粒度极细，难以单体解离；金主要为裸露金和黄铜矿包裹金。为了高效开发利用该二次资源，进行了铜金综合浮选回收试验。结果表明，在磨矿细度为-200目占80%的情况下采用1粗2精2扫、精矿2再磨至-325目占85%后2次精选、中矿顺序返回流程处理该试样，最终获得了铜、金、银品位分别为13.05%、18.75 g/t、229.62 g/t，铜、金、银回收率分别为58.70%、56.66%、43.72%的铜金精矿。
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| 关 键 词： | 铜尾矿 综合回收 再磨 |
Recovery Flotation of Copper and Gold from Copper Tailings in Guizhou Province |
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| Liu Bao,Wang Zi,Sun Qianyu,Mang Changye. Recovery Flotation of Copper and Gold from Copper Tailings in Guizhou Province[J]. Metal Mine, 2015, 44(1): 157-160 |
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| Authors: | Liu Bao Wang Zi Sun Qianyu Mang Changye |
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| Affiliation: | College of Mining Engineering，Liaoning Technical University，Fuxin 123000，China |
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| Abstract: | For a copper tailing in Guizhou with fineness of 40.17% passing 200 mesh，its valuable minerals are mainly chalcopyrite，pyrite，pyrrhotite and bornite，with a small amount of gold and silver associated.Chalcopyrite，closely associated with pyrite，pyrrhotite，exists in fine or micro-fine form，some of which are too fine to be liberated.Gold mainly exists in form of natural gold or enclosed by chalcopyrite.In order to high-efficiently develop and utilize the secondary resources，the experiment on recovery of copper-gold is carried out.The results show that，at the grinding fineness of 80% passing 200 mesh，through the processes of one roughing-two cleanings-two scavengings，concentrate 2 regrounded to 85% passing 325 mesh and then through two cleanings，and middlings back to the flow-sheet in order，Cu-Ag concentrate with copper，gold，silver grade of 13.05%，18.75 g/t，229.62 g/t，and recovery of 58.70%，56.66%，43.72% is achieved respectively. |
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| Keywords: | Copper tailings Comprehensive recovery Regrinding |
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