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Process for recovery of indium from ITO scraps and metallurgic microstructures

机译：从ITO废料和冶金微结构中回收铟的方法

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摘要

Indium (In) can be recycled economically from used indium tin oxide (ITO) target or ITO etching solution. This study offers an efficient and simple method for recovery of pure indium from used materials using hydrometallurgical and hot immersion processes. The hydrometallurgical method (displacement) can be used to obtain indium metal from ITO waste liquid, and a slag-making process during hot immersion is proposed to purify sponge indium above 99%. The effects of replacement agents and temperatures for replacement solution are discussed using microstructure measurements for illustration. Magnesium (Mg) has the lowest oxidation potential and can be easily removed by using either oxidization or vaporization. In contrast, tin needs to be detached from an indium plate before sponge indium can form.
机译：可以从使用过的铟锡氧化物（ITO）靶材或ITO蚀刻溶液中经济地回收铟（In）。这项研究提供了一种有效而简单的方法，即使用湿法冶金和热浸工艺从废旧材料中回收纯铟。湿法冶金法（置换法）可用于从ITO废液中获得铟金属，并提出了热浸过程中的制渣工艺以纯化99％以上的海绵铟。使用微结构测量来说明替代剂和替代溶液温度的影响。镁（Mg）的氧化电位最低，可以通过氧化或汽化轻松去除。相反，在形成海绵铟之前，需要从铟板上剥离锡。

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  • 来源
    《Materials Science and Engineering》 |2009年第3期|82-87|共6页
  • 作者

    Sheng-Jen Hsieh; Chien-Chon Chen; Wen C. Say;

  • 作者单位

    Department of Engineering Technology and Department of Mechanical Engineering. Texas A&M University. College Station. TX 77843-3367, USA;

    Department of Energy and Resources, National United University, 1 Lienda, Miaoli 36003, Taiwan;

    Department of Materials & Mineral Resources Engineering, National Taipei University of Technology, Taipei 10643, Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    indium; ITO; recovery; hydrometallurgy; hot immersion;

    机译：铟;ITO;复苏;湿法冶金热浸;

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