| 铜镍硫化矿浮选中镁质硅酸盐矿物的抑制途径 |
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| 引用本文： | 曹钊,张亚辉,孙传尧,曹永丹.铜镍硫化矿浮选中镁质硅酸盐矿物的抑制途径[J].金属矿山,2012,41(7):85. |
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| 作者姓名： | 曹钊 张亚辉 孙传尧 曹永丹 |
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| 作者单位： | 1.东北大学资源与土木工程学院；2.内蒙古科技大学矿业工程学院；3.北京矿冶研究总院 |
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| 摘 要： | 分析了铜镍硫化矿中MgO脉石矿物的晶体结构、理化性质及其与可浮性的关系，总结了铜镍硫化矿浮选中含镁脉石矿物进入浮选精矿的可能途径及对策，着重介绍了含镁脉石矿物表面活化离子的作用及消除机理，最终得出采用高效金属离子络合剂对矿物表面进行清洗预处理，恢复矿物的原本浮游性，再用选择性抑制剂抑制含镁脉石矿物，将是处理含镁硅酸盐铜镍硫化矿物的有效途径的结论。
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| 关 键 词： | 铜镍硫化矿 镁质硅酸盐 金属离子 抑制剂 |
Inhibiting Approaches of Magnesium Silicate Minerals in Copper-nickel Sulfide Ore Floatation |
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| Cao Zhao
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Zhang Yahui
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Sun Chuanyao
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Cao Yongdan.Inhibiting Approaches of Magnesium Silicate Minerals in Copper-nickel Sulfide Ore Floatation[J].Metal Mine,2012,41(7):85. |
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| Authors: | Cao Zhao Zhang Yahui Sun Chuanyao Cao Yongdan |
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| Affiliation: | 1.College of Resources and Civil Engineering, Northeastern University；2.School of Mining Engineering,Inter Mongolia University of Science and Technology；3.Beijing General Research Institute of Mining and Metallurgy; |
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| Abstract: | The relationship of crystal structure, physico-chemical properties and floatability of MgO-containing silicate gangue minerals in copper-nickel sulfide ores was analyzed, possible ways of magnesium silicate mixed into flotation concentrate in copper-nickel sulfide ores flotation and corresponding countermeasures were summarized, the activating mechanism of metal ions on magnesium silicate and deactivating methods were emphatically researched.Finally an effective method was obtained.In this method, an efficient metal ions complexing agent is used to clean the surfaces of minerals, which will recover their original floatability.In the meantime, a selective depressant is applied to depress magnesium-containing gangue minerals.This may be the effective approach for depressing magnesium-containing silicate minerals in copper-nickel sulfide ore floatation. |
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