Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Study on the Recovery of Metallic Aluminum in Black Dross generated from the Used Beverage Cans (UBC) Recycling Process with Crushing Mechanism

파쇄 기구에 따른 알루미늄 캔 재자원화 공정 중 발생한 블랙 드로스 내 알루미늄 회수에 관한 연구

  • Han, Chulwoong (Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology) ;
  • Son, Seong Ho (Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology) ;
  • Ahn, Byung-Doo (DS LIQUID) ;
  • Kim, Dae-Guen (Institute for Advanced Engineering) ;
  • Lee, Man Seung (Department of Advanced Materials Science and Engineering, Institute of Rare Metal, Mokpo National University) ;
  • Kim, Yong Hwan (Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology)
  • 한철웅 (한국생산기술연구원 뿌리산업기술연구소) ;
  • 손성호 (한국생산기술연구원 뿌리산업기술연구소) ;
  • 안병두 ((주)디에스리퀴드 기술연구소) ;
  • 김대근 (고등기술연구원 신소재공정센터) ;
  • 이만승 (목포대학교 공과대학 신소재공학과) ;
  • 김용환 (한국생산기술연구원 뿌리산업기술연구소)
  • Received : 2017.07.03
  • Accepted : 2017.07.25
  • Published : 2017.08.31
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Abstract

This study investigated the recovery of metallic aluminium in the black dross generated from used beverage can recycling process with crushing mechanism such as compression and impact. The as-received Al black dross had a spherical shape, and its size was about 10~40 mm. Also, The X-ray diffraction pattern showed that the main contents of black dross are composed of halite (NaCl), sylvite (KCl), spinel ($MgAl_2O_4$) and corundum ($Al_2O_3$). A metallic aluminium recovery test was performed using jaw crusher and hammer mill having different crushing mechanism. It was analysed that Jaw crushing process can separate into metallic aluminium and non metallic constituents. However, hammer milling process shows significant difference on the separation results. It was found that jaw crushing process was effective for recovery of metallic aluminium in the black dross than that of hammer milling process.

본 연구는 UBC 재활용 용해공정 중 발생한 블랙 드로스 내 금속 알루미늄을 회수하기 위해 압축 및 충격 파쇄 공정에 따른 알루미늄 회수율에 대하여 조사하였다. 초기 알루미늄 블랙 드로스는 대부분 구형의 형상으로 약 10~40 mm 크기였다. 또한 블랙 드로스의 주요 구성 성분은 할라이트(NaCl), 실바이트(KCl), 스피넬($MgAl_2O_4$) 및 알루미나($Al_2O_3$)로 나타났다. 알루미늄 금속의 회수율 시험은 서로 다른 파쇄 기구를 갖는 죠 크러셔와 햄머밀 공정으로 진행하였다. 파쇄 기구에 따른 알루미늄 금속 회수 실험결과, 죠 크러셔 공정은 금속과 비금속 혼합물을 분리할 수 있었으나 햄머밀 공정은 금속과 비금속의 분리가 어려운 것으로 관찰되었으며 알루미늄 블랙드로스 내 금속 알루미늄을 회수하기 위한 파쇄 공정은 죠 크러셔 공정이 더 효과적인 것으로 보여진다.

Keywords

References

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