| 磨矿方法对某硫化矿浮选的影响 |
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| 引用本文： | 魏以和,周高云. 磨矿方法对某硫化矿浮选的影响[J]. 有色金属, 2007, 59(4): 131-136 |
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| 作者姓名： | 魏以和 周高云 |
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| 作者单位： | 1. 武汉工程大学,环境与城市建设学院,武汉,430073
2. 北京矿冶研究总院,北京,10044 |
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| 摘 要： | 为提高效果，用三种磨机（普通钢磨机，不锈钢磨机和瓷磨机）研究某铅锌矿小型试验的浮选行为。结果表明，瓷磨机（即非铁质磨机）的氧化性磨矿环境可提高铅回收率，但由于矿石氧化产生的铜离子对闪锌矿的活化而降低了浮选选择性。相反地，传统铁质磨机磨矿则导致铅收率下降，而选择性提高。铁质磨机磨矿对铅收率降低可能是由铁氧化产物在矿物表面覆盖而造成的。粗粒更易受这种抑制的影响。
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| 关 键 词： | 选矿工程 磨矿介质 硫化矿 浮选 |
| 文章编号： | 1001-0211（2007）04-0131-06 |
| 收稿时间： | 2006-11-29 |
| 修稿时间： | 2006-11-29 |
Effects of Grinding Measure on Complex Pb/Zn Ore Flotation |
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| WEI Yi-he,ZHOU Gao-yun. Effects of Grinding Measure on Complex Pb/Zn Ore Flotation[J]. Nonferrous Metals, 2007, 59(4): 131-136 |
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| Authors: | WEI Yi-he ZHOU Gao-yun |
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| Affiliation: | School of Civil and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China; 2. Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China |
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| Abstract: | The flotation performances of a complex Pb/zn ore are investigated by three kinds of mill(steel,stainless and ceramic mill)in laboratory batch flotation testa.It is found that the lead recovery is increased while grinding in a ceramic mill,i.e.a non-ferrous,oxidizing environment.but the selectivity is decreased due to the activation ol sphalerite by copper ions produced via the oxidation of ore.On the contrary,the lead recovery is decreased while grinding in a traditionel iron mill,but the selectivity is increased.The low recovery with iron grinding media is probably caused by the coating of iron oxy-hydroxides on sulphide surfaces.Coarse particles are more sensitive to this kind of depression. |
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| Keywords: | mineral processing complex sulphide ore milling flotation |
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