Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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The Selective Removal of Sb and Pb from Molten Bi-Pb-Sb Alloy by Oxidation

용융(熔融) Bi-Pb-Sb계(系) 합급(合金)의 산화(酸化)에 의한 Sb과 Pb 제거(除去)

  • Kim, Se-Jong (Dept. of Materials Science and Metallurgical Engineering, Kyungpook National University) ;
  • Son, In-Joon (Dept. of Materials Science and Metallurgical Engineering, Kyungpook National University) ;
  • Sohn, Ho-Sang (Dept. of Materials Science and Metallurgical Engineering, Kyungpook National University)
  • 김세종 (경북대학교 금속신소재공학과) ;
  • 손인준 (경북대학교 금속신소재공학과) ;
  • 손호상 (경북대학교 금속신소재공학과)
  • Received : 2012.05.21
  • Accepted : 2012.07.09
  • Published : 2012.08.31
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Abstract

In this study, behaviors of removing Sb and Pb by oxidation of molten Bi-Pb-Sb alloy which is a by-product of non-ferrous smelting process was investigated. The molten alloy was oxidized at 1173 K by bubbling $N_2+O_2$ gas through a submerged nozzle. The Sb was removed and recovered as mixed phase of $Sb_2O_3$ and metal Sb. In the case of bubbling $N_2+O_2$ gas into molten Bi-Pb alloy at 923 K, Pb was oxidized and removed to slag. But Bi could not be refined due to simultaneous oxidization of Bi with Pb.

본 연구에서는 비철제련의 공정 부산물에서 얻어진 Bi-Pb-Sb 3원계 합금 용탕의 산화반응에 따른 Sb과 Pb의 제거거동에 대하여 조사하였다. $N_2+O_2$ 가스를 침지 노즐을 통해 1173 K의 합금 용탕 중에 취입하여 Sb을 산화물과 금속상의 혼합물로 분리 회수할 수 있었다. 그리고 923 K의 Bi-Pb 2원계 용탕에 $N_2+O_2$ 가스를 취입하면 Pb가 산화되어 슬래그상으로 제거될 수 있으나, Bi도 동시에 산화되어 Bi를 정제할 수 없었다.

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References

  1. 吳在賢 등, 2012: 都市鑛山 再資源化기술의 모듈과 韓國의 非鐵製鍊 프로세스, 資源리싸이클링, 21(1), pp. 3-16.
  2. 井上洋, 天屋泰彦, 目時勝夫, 1989: 精銀工程の諸改善, 資源.素材誌, 105(5), pp. 383-385.
  3. 田村泰夫, 南芳史, 1993: 竹原製煉所の鉛製(三井金 業(株)), 資源.素材誌, 109(12), pp. 1029-1032.
  4. John L. Bray, 1963:"Chapter 14 Lead", Non-Ferrous Production Metallurgy 2nd Ed., p. 329, John Wiley & Sons. Inc., New York, USA.
  5. 阿座上竹四, 粟倉泰弘, 1999: "3.7 乾式精鍊", 金屬製鍊工學, p. 96, 日本金屬學會, 仙台, 일본.
  6. Kubaschewski, O. and Alcock C. B., 1979: "Table D. Vaopur pressure and evaporation constants", Metallurgical Thermochemistry 5th Ed., p. 370-372, Pergamon Press, Oxford, U.K.
  7. Fruehan, R. J., 1971: Mass Spectrometric Determination of Activities for Alloys with Complex Vapor Species: Bi-Pb and Bi-Tl, Metall. Trans., 2(4), pp. 1213-1218. https://doi.org/10.1007/BF02664254
  8. Yoon, S.W. and Lee, H. M., 1998: A Thermodynamic Study of Phase Equilibria in the Sn-Bi-Pb Solder System, Calphad, 22(2), pp. 167 https://doi.org/10.1016/S0364-5916(98)00022-4