Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Study on the Pyro-metallurgical Process for Recovery of Valuable Metal in the Sludge Originated from PCB Manufacturing Process

PCB 제조 공정 중 발생한 슬러지 내 유가금속 회수를 위한 건식야금 공정에 관한 연구

  • Han, Chulwoong (Korea Institute of Industrial Technology) ;
  • Son, Seong Ho (Korea Institute of Industrial Technology) ;
  • Lee, Man-Seung (Department of Advanced Material Science and Engineering, Institute of Rare Metal, Mokpo National University) ;
  • Kim, Yong Hwan (Korea Institute of Industrial Technology)
  • Received : 2019.11.07
  • Accepted : 2019.11.26
  • Published : 2019.12.31
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Abstract

This study investigated the effect of process variables for smelting of recovery of valuable metal in the sludge generated from PCB. The moisture and organics in the sludge was removed by preteatment process. The phase equilibria and slag system was selected by thermodynamic phase calculation program and the process variable of pyro-metallurgical process such as reductant. Smelting temperature and holding time for a recovery of valuable metal was studied.

본 연구에서는 인쇄회로기판(PCB) 제조 공정 중 발생한 슬러지 내 구리를 회수하기 위한 건식야금 공정 변수에 대해 조사하였다. 에칭 및 도금 공정에서 발생한 슬러지는 전처리 공정을 통해 수분과 유기물을 제거하였다. 열역학 상평형 계산을 통해 평형상과 슬래그 시스템을 선정하였으며, 유가금속 회수율에 미치는 건식야금 공정 변수에 대하여 조사하였다.

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References

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