Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Selective Removal of Cu in Ferrous Scrap by Chlorine gas

염소가스에 의한 철 스크랩 중 Cu의 선택적 제거

  • Lee, So-Yeong (School of Materials Science and Engineering, Kyungpook National University) ;
  • Sohn, Ho-Sang (School of Materials Science and Engineering, Kyungpook National University)
  • 이소영 (경북대학교 신소재공학부) ;
  • 손호상 (경북대학교 신소재공학부)
  • Received : 2018.08.27
  • Accepted : 2018.09.19
  • Published : 2018.10.31
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Abstract

The quality of steel produced from scrap can be adversely affected because of the buildup of tramp elements in recycled scrap. The tramp element of greatest concern is copper because of its effect on steel quality, even in small percentage quantities. In this study, possibility of removal of copper from ferrous scrap by using $Cl_2$ gas is experimentally examined in a small size experimental apparatus. Synthetic ferrous scraps containing copper were reacted with $Cl_2$ gas in various atmosphere. The copper was chloridized and evaporated, whereas iron was oxidized and was not reacted with Cl2 and oxygen mixture gas.

철 스크랩으로부터 제조되는 철강재의 품질은 재활용 스크랩 중의 미량원소에 의해 악영향을 받는다. 특히 철 스크랩 중의 Cu는 소량이라도 그 영향이 크기 때문에 주의하여야 하는 원소이다. 본 연구에서는 철 스크랩 중의 Cu를 염소가스에 의해 선택적으로 제거할 수 있는 가능성에 대해서 실험실적으로 검토하였다. Cu를 함유하는 모의 철 스크랩을 여러 가지 분위기의 염소가스와 반응시켰다. 실험결과 Cu는 염화되어 증발되었으나, Fe는 염소와 산소의 혼합가스 분위기에서는 표면만 산화되고 염화되지 않았다.

Keywords

References

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