| 亚硫酸氢钠和石灰组合剂与铜镍硫化矿表面的作用机理 |
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| 引用本文： | 孟书青,王毓华,胡熙赓.亚硫酸氢钠和石灰组合剂与铜镍硫化矿表面的作用机理[J].中南大学学报(自然科学版),1990(6). |
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| 作者姓名： | 孟书青 王毓华 胡熙赓 |
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| 作者单位： | 中南矿冶学院矿物工程系，中南矿冶学院矿物工程系，中南矿冶学院矿物工程系 |
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| 摘 要： | 本文采用显微电泳仪、原子吸收光谱、紫外光谱吸收仪和X射线粉晶衍射仪研究了药剂与矿物表面的作用机理。证明亚硫酸氢钠和石灰组合剂作用后,在镍黄铁矿表面形成了CaSO_3和CaSO_4等亲水性产物,同时降低了矿浆体系的氧化还原电位(Eh),加快了镍黄铁矿表面氧化速度,生成了Fe(OH)_3和Ni(OH)_2等产物,强化了镍黄铁矿的抑制。
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| 关 键 词： | 浮选 作用机理 黄铜矿 镍黄铁矿/Z—200 组合药剂 |
MECHANISMS OF THE INTERACTION OF COMBINED REAGENT OF SODIUM HYDROGEN SULFITE AND LIME WITH THE SURFACES OF COPPER--NICKEL SULFIDE |
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| Meng Shuqing,Wang Yuhua,Hu Xigeng.MECHANISMS OF THE INTERACTION OF COMBINED REAGENT OF SODIUM HYDROGEN SULFITE AND LIME WITH THE SURFACES OF COPPER--NICKEL SULFIDE[J].Journal of Central South University:Science and Technology,1990(6). |
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| Authors: | Meng Shuqing Wang Yuhua Hu Xigeng |
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| Institution: | Meng Shuqing;Wang Yuhua;Hu Xigeng Department of Mineral Engineering |
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| Abstract: | In this paper, mechanisms of the interaction of reagents with mineral surfaces have been investi-gated by means of microelectrophoresis apparatus, atomic adsorption spectrophotometer, ultra violetspectrophotometer and X-ray powder diffraction spectrometer. It is shown that the addition of com-bined reagent of sodium hydrogen sulfite and lime results in the formation of hydrophilic CaSO_3 andCaSO_4 etc. on the pentlandite, and decreases redox potential (Eh) in the pulp system, and acceleratesoxidation rate of the surface of pentlandite, therefore Fe(OH)_3 and Ni(OH)_2 are formed and thus pent-landite is deprassed strongly. |
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| Keywords: | flotation reaction mechanism chalcopyrite pentlandite/Z-200 combined reagent |
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