| 机械活化对辉钼矿浸出的影响 |
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| 引用本文： | 吴保林,赵中伟.机械活化对辉钼矿浸出的影响[J].稀有金属与硬质合金,2004,32(1):1-4. |
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| 作者姓名： | 吴保林 赵中伟 |
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| 作者单位： | 1. 深圳石化集团,广东,深圳,518028
2. 中南大学冶金科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 国家自然科学基金资助课题(59934080) |
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| 摘 要： | 研究了机械活化对辉钼矿浸出动力学的影响。机械活化处理使辉钼矿在HNO3-H2SO4溶液中的浸出反应的表观活化能逐步降低，但幅度不大。在行星式离心球磨机中剧烈活化40min后，浸出活化能较未处理时低约6kJ／mol。这是由于辉钼矿呈层状结构，层与层之间由微弱的范德华力维系，在受到外力作用时。很容易发生层间滑移，一定程度上化解了这种作用力。
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| 关 键 词： | 机械活化 辉钼矿 浸出 |
| 文章编号： | 1004-0536(2004)01-0001-04 |
| 修稿时间： | 2003年8月12日 |
Mechanical Activation Effect on Leaching of Molybdenite |
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| WU Bao-lin,ZHAO Zhong-wei.Mechanical Activation Effect on Leaching of Molybdenite[J].Rare Metals and Cemented Carbides,2004,32(1):1-4. |
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| Authors: | WU Bao-lin ZHAO Zhong-wei |
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| Affiliation: | WU Bao-lin~1,ZHAO Zhong-wei~2 |
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| Abstract: | The effect of mechanical activation on leaching kinetics of molybdenite is studied.Mechanical treatment causes slight depression of apparent activation energy for leaching molybdenite in HNO_3-H_2SO_4 solution.After 40-minute intensive mechanical activation in planetary centrifugal ballmill,the activation energy becomes 6kJ/mol less than that for leaching of non-activated one.We ascribe this to the layered structure of molybdenite.When violent mechanical force is acted on molybdenite crystal,it is easy to obviate such force through inter-layer slip since the Van der Vals force between S-S layers is very weak. |
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| Keywords: | mechanical activation molybdenite leaching |
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