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首页> 外文会议>PbZn 2010 >RESEARCH ON INDIUM AND GERMANIUM DISTRIBUTIONS BETWEEN LEAD BULLION AND SLAG AT SELECTED PROCESS CONDITIONS
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RESEARCH ON INDIUM AND GERMANIUM DISTRIBUTIONS BETWEEN LEAD BULLION AND SLAG AT SELECTED PROCESS CONDITIONS

机译：选定工艺条件下铅锭和渣渣中铟和锗分布的研究

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摘要

The recovery of indium and germanium during lead metal extraction processes has the potentialrnto add value to existing pyrometallurgical operations. Few experimental data are available that describe thernpartitioning of these species between major phases at the industrial process conditions. In addition, thernbulk chemical analysis techniques used in previous studies have limited accuracy since the solid phasesrnand their proportions in slag are not identified. A novel methodology was developed for the highrntemperature equilibration and quenching technique where the composition of the quenched liquid slagrnphase was analysed by Electron Probe X-Ray microanalysis (EPMA) and the metallic lead phase byrnInductively Coupled Plasma (ICP). The improved methodology developed in the present study providesrnthe opportunity to resolve differences between the data presented in the literature, and accurate descriptionrnof the systems. Results of the study show that at the selected experimental conditions, indium isrnpredominantly present in the slag as In~(3+), and germanium as Ge~(4+). Germanium partitions preferentially tornthe slag phase between PO_2 of 10~(-8) to 10~(-12) atm. Indium partitions preferentially to the metal under low PO_2rnand to the slag at high PO2. Additions of copper, arsenic or antimony at levels below 5 wt% in the leadrnmetal phase do not affect the partitions of indium or germanium. Increasing the temperature from 1150 ℃rnto 1300 ℃ increases the partition of indium. At the experimental temperatures in the range of 1200 ℃ torn1150 ℃ no significant change in the partition ratio of germanium was observed.
机译：铅金属萃取过程中铟和锗的回收具有为现有火法冶金操作增加价值的潜力。很少有实验数据可以描述这些物质在工业过程条件下在主要相之间的分配。另外，以前的研究中使用的散装化学分析技术的准确性有限，因为未确定固相及其在炉渣中的比例。开发了一种用于高温平衡和淬火技术的新方法，其中通过电子探针X射线微分析（EPMA）分析了淬火的液态渣相的成分，并通过电感耦合等离子体（ICP）分析了金属铅相。本研究中开发的改进方法为解决文献中提出的数据之间的差异提供了机会，并为系统提供了准确的描述。研究结果表明，在选定的实验条件下，炉渣中铟主要以In〜（3+）形式存在，锗以Ge〜（4+）形式存在。锗隔板优先撕裂PO_2为10〜（-8）atm至10〜（-12）atm的炉渣相。在低PO_2rn下，铟优先分配给金属，在高PO2下，铟优先分配给炉渣。在铅金属相中添加的铜，砷或锑的含量低于5 wt％不会影响铟或锗的分配。将温度从1150℃升至1300℃会增加铟的分配。在1200℃至1150℃的实验温度下，锗的分配比没有明显变化。

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  • 来源
    《PbZn 2010》|2010年|p.1145-1160|共16页
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  • 作者

    H. M. Henao; P. C. Hayes; E. Jak; G.G. Richards;

  • 作者单位

    Pyrometallurgy Research Centre (PYROSEARCH) The University of Queensland, Brisbane School of Engineering, Australia 4072 e-mail h.henaozapata@uq.edu.au;

    Pyrometallurgy Research Centre (PYROSEARCH) The University of Queensland, Brisbane School of Engineering, Australia 4072;

    Pyrometallurgy Research Centre (PYROSEARCH) The University of Queensland, Brisbane School of Engineering, Australia 4072;

    Teck Metals Ltd. Trail Metallurgical Operations Trail, BC, Canada;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 锌;铅;
  • 关键词

    indium; germanium; slag; phase equilibria; electron probe X-Ray microanalysis (EPMA);

    机译：铟;锗;炉渣;相平衡;电子探针X射线显微分析（EPMA）;

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