Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Pyro-metallurgical Treatment of used OA Parts for the Recovery of Valuable Metals

유가금속(有價金屬) 회수(回收)를 위한 PCB 스크랩의 건식처리기술(乾式處理技術)

  • Shin, Dong-Yeop (Department of Materials Science and Engineering, Inha University) ;
  • Lee, Sang-Dong (Department of Materials Science and Engineering, Inha University) ;
  • Jeong, Hyeon-Bu (Department of Materials Science and Engineering, Inha University) ;
  • You, Byung-Don (Department of Materials Science and Engineering, Inha University) ;
  • Han, Jeong-Whan (Department of Materials Science and Engineering, Inha University) ;
  • Jung, Jin-Ki (Minerals & Materials Processing Division, Korea Institute of Geoscience & Mineral Resources)
  • 신동엽 (인하대학교 신소재공학부) ;
  • 이상동 (인하대학교 신소재공학부) ;
  • 정현부 (인하대학교 신소재공학부) ;
  • 유병돈 (인하대학교 신소재공학부) ;
  • 한정환 (인하대학교 신소재공학부) ;
  • 정진기 (한국지질자원연구원)
  • Published : 2008.04.27
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Abstract

It is well known that PCB (Printed Circuit Board) is a complex mixture of various metals. In this study, pyro-metallurgical process was investigated to extract valuable metallic components from the PCB scrap. PCB scrap was shredded and oxidized to remove plastic materials, and then, quantitative analysis were made. 15 mass %$Al_2O_3-45$ mass %CaO-40 mass %$SiO_2$ and 32 mass %$SiO_2-20$ mass %$Al_2O_3-38$ mass %CaO-10 mass %MgO, were chosen as basic slag compositions which are determined based on the quantitative analysis of PCB scrap. During experiments a super kanthal rotating furnace was used to melt and separate metallic components. Moreover the revolution effect on was the recovery of valuable metals from PCB scrap also investigated.

폐 컴퓨터나 OA기기 중 PCB (Printed Circuit Board)에는 귀금속을 포함한 많은 양의 금속성분이 함유되어 있으며, 본 연구에서는 이들을 분리회수하기 위한 건식처리 기술을 검토하였다. 폐 컴퓨터로부터 얻은 PCB 스크랩을 산화처리한 시료에 대해 정량분석을 실시하고, 함유된 산화물 종류에 대하여 적합한 슬래그계를 선정하여 유가금속을 분리회수하기 위한 산화물 성분의 슬래그화를 시도하였다. 용융작업을 위해 슈퍼칸탈 회전로를 사용하였으며, 이때 도가니 회전이 금속의 회수율에 미치는 영향을 조사하였다.

Keywords

References

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