>The role of surface chemistry in recovery of minerals is central to several processes such as froth flotation, leac'/> The development of statistical <fc xmlns='http://www.wiley.com/namespaces/wiley'>ToF</fc>ToF ‐ <fc xmlns='http://www.wiley.com/namespaces/wiley'>SIMS</fc>SIMS applied to minerals recovery by froth flotation
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首页> 外文期刊>Surface and Interface Analysis: SIA: An International Journal Devoted to the Development and Application of Techniques for the Analysis of Surfaces, Interfaces and Thin Films >The development of statistical ToFToF ‐ SIMSSIMS applied to minerals recovery by froth flotation
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The development of statistical ToFToF ‐ SIMSSIMS applied to minerals recovery by froth flotation

机译：统计 tof tof - SIMS SIMS应用于泡沫浮选的矿物质恢复

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>The role of surface chemistry in recovery of minerals is central to several processes such as froth flotation, leaching, and electrostatic separation. In separation of base metals (eg, Cu, Pb, Zn, and Ni) by froth flotation of their minerals, usually sulphides, the attachment of these mineral particles, after hydrophobic collector addition, to air bubbles is used in operation. The stability of this bubble/particle attachment in both pulp and froth phases is dependent on the hydrophobic/hydrophilic ratio of surface species on individual mineral particle surfaces. The surfaces of individual mineral particles are a complex, distinctly non‐uniform array of hydrophobic collector molecules and hydrophilic species (eg, oxidation products, adsorbed ions, fine particles, and precipitates). Hence, this ratio varies widely between different particles of the same mineral. It has been shown to determine whether particles report, correctly or incorrectly, to concentrate or tail (residue). To improve poor flotation recovery or grade, the analysis needed is the variation of this ratio by particle and as a statistical distribution between different mineral phases across a flotation circuit (eg, feed, successive concentrates, and tails). This requires surface analysis of a large number of particles with high spatial resolution and chemical speciation. In this Surface Science Western special issue article, methods to achieve this, using time‐of‐flight secondary ion mass spectrometry and principal component analysis, developed between the Ian Wark Research Institute and Surface Science Western over 25?years are reviewed with applications to flotation. They are equally applicable to interferences in leaching, extraction, and electrostatic separation processes. Copyright ? 2017 John Wiley & Sons, Ltd.
机译： >在矿物质恢复中的表面化学的作用是若干流程的核心作为泡沫浮选，浸出和静电分离。在通过矿物质的泡沫浮选的泡沫浮选的基础金属（例如，Cu，Pb，Zn和Ni）中，通常硫化物，在疏水收集器加入的气泡之后，将这些矿物颗粒的附着在操作中。纸浆和泡沫相中该泡沫/颗粒附着的稳定性取决于各种矿物颗粒表面上的表面物质的疏水/亲水比。单个矿物颗粒的表面是复合物，明显不均匀的疏水收集器分子和亲水物种（例如，氧化产物，吸附离子，细颗粒和沉淀物）。因此，该比率在相同矿物的不同颗粒之间变化广泛。已经证明粒子是否报告，正确或不正确，以浓缩或尾部（残留物）。为了改善浮选恢复或级别，所需的分析是通过颗粒的这种比例的变化以及在浮选电路上的不同矿物相之间的统计分布（例如，进料，连续的浓缩物和尾部）。这需要具有高空间分辨率和化学品种的大量颗粒的表面分析。在这个表面科学西方特殊问题上，使用飞行时间二次离子质谱和主要成分分析的方法，在IAN WARK研究所和Surface Scients之间开发的25岁以上的型号，通过应用到浮选的应用程序。它们同样适用于浸出，提取和静电分离过程中的干扰。版权？ 2017年John Wiley＆amp; SONS，LTD。

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