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Recovery of Gallium and Arsenic from Gallium Arsenide Semiconductor Scraps

机译:从砷化镓半导体废料中回收镓和砷

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摘要

In this paper, a novel technique for recovery of gallium and arsenic by thermal decomposition under vacuum is presented. The effects of distillation temperature on the volatilization behavior of each component were investigated. Theoretical calculations and experimental studies have shown that the method is feasible. The results show that under optimum conditions, highly pure Ga can be extracted with advantages over conventional techniques, including simple operation and environmental friendliness. For example, metallic gallium (purity > 99.99%) is obtained at 1273 K after 3 h under 3-8 Pa. Arsenic is obtained in the form of a elementary substance which could be preserved with relative ease.
机译:本文提出了一种在真空下通过热分解回收镓和砷的新技术。研究了蒸馏温度对各组分挥发行为的影响。理论计算和实验研究表明该方法是可行的。结果表明,在最佳条件下,与传统技术相比,可以提取出高纯度的Ga,包括操作简单和环境友好。例如,金属镓(纯度> 99.99%)在3-8 Pa下3小时后在1273 K下获得。砷以基本物质的形式获得,可以相对容易地保存。

著录项

  • 来源
  • 会议地点 Phoenix(US)
  • 作者单位

    National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093. China,Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China;

    National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093. China,The State Key Laboratory of Complex Non-Ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093. People's Republic of China,Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China;

    National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093. China,Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China;

    National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093. China,Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China;

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

    GaAs; Vacuum thermal decomposition; Volatilization Recovery; Gallium;

    机译:砷化镓;真空热分解;挥发回收;镓;

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