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

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.

References

  1. A. Bernades, I. Bohlinger, and D. Rodriguez et al, 1997: Recycling of Printed Circuit Boards by Melting with Oxidizing/Reducing Top Blowing Process, TMS Annual Meeting, Orlando, 363
  2. E. Jackson, 1986: Hydrometallurgical Extraction and Reclamatuon, Ellis Horwood, 204
  3. V. A. Ettel and B.V. Tilak, 1981: Comprehensive Treatise of Electrochemistry, vol. 2, Plenium Press, 328
  4. C. L. Mantell, 1960: Electrochemical Engineering(4th ed), McGraw-Hill Inc., 198
  5. M. Alibert, H. Gaye, and J. Geiseler et al., 1995: Slag Atlas 2nd Edition, Verein Deutscher Eisenhüttenleute, Germany, 353
  6. E. H. Kwon, J. W. Han, and J. C. Lee et al., 2003: Korea Joural of Materials Research 13(4), 243
  7. J. E. Hoffmann, 1992: Recovering Precious Metals from Electronic Scrap, JOM 44, 43
  8. M. Alibert, H. Gaye, J. Geiseler et al., 1981:Schlackenatlas Slag Atlas, Verein Deutscher Eisenhüttenleute, Germany, 57
  9. B. Langanke, H. Schmalzried, 1979: Ber. Bunsenges. Phys. Chem. 83, 59 https://doi.org/10.1002/bbpc.19790830112
  10. W. Petuskey, H. Schmalzried, 1980: Ber. Bunsenges. Phys. Chem. 84, 218 https://doi.org/10.1002/bbpc.19800840304
  11. S. Dhara, Precious Metals, Ed-G. Vermeylen and R. Verb, 1987: Processings of 11th International precious Metals institute Conference, Brussels, Belgium, 253
  12. J. W. Han, E. H. Kwon, and S. S. Han et al, 2003:Materials Science Forum, 439, 154
  13. E. H. Kwon, S. H. Jang, and J. W. Han et al, 2005:Korea Joural of Materials Research 15(1), 31