Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Scale-up of Highly Effective Copper Metal Recovery from Waste Jelly-filled Communication Cables

폐 젤리충진 통신케이블로부터 고순도 구리회수를 위한 대형화 방안 연구

  • Cho, Sungsu (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Lee, Sooyoung (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Seo, Minhye (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Uhm, Sunghyun (Advanced Materials & Processing Center, Institute for Advanced Engineering)
  • 조성수 (고등기술연구원 신소재공정센터) ;
  • 이수영 (고등기술연구원 신소재공정센터) ;
  • 서민혜 (고등기술연구원 신소재공정센터) ;
  • 엄성현 (고등기술연구원 신소재공정센터)
  • Received : 2013.12.10
  • Accepted : 2014.02.02
  • Published : 2014.04.10
Download PDF
⟨ Previous Next ⟩

Abstract

We examined and compared the feasibility of vegetable oils with synthetic thermal conductive oils to recover highly purified copper metal from waste jelly-filled communication cables. While polydimethylsiloxane shows relatively poor separation efficiency under entire operating conditions, dibenzyltoluene and waste vegetable oil show the high separation efficiency if the appropriate operating temperature and time were given. By running 50 kg-class equipment with waste vegetable oils, we obtained 100% copper metal recovery with 99.2% purity at $300^{\circ}C$ for 60 min.

폐 젤리충진 통신케이블로부터 고순도 구리회수를 위하여 실리콘계 및 톨루엔계 합성 열매유와 폐식용유를 사용하여 적용성을 평가하였다. 실리콘계 오일의 경우 모든 조건에서 분리효율이 낮은 반면, 톨루엔계 오일 및 폐식용유의 경우 처리온도 및 시간을 조절함에 따라 높은 분리효율을 얻을 수 있었다. 폐식용유를 사용하는 50 kg급 밀폐형 대용량 설비를 이용하여 $300^{\circ}C$에서 60 min 이상 처리할 경우 99.2% 이상의 고순도 구리와이어를 100% 회수할 수 있었다.

Keywords

References

  1. Y. Jung, T. H. Im, and J. O. Jung, Recovery of copper from waste wire using pyrolysis, J. Korean Solid Wastes Eng. Soc., 12, 93-98 (1995).
  2. S. K. Han and J. Y Kim, Low temperature pyrolysis for the recovery of value-added resources from waste wire(II), J. Korean Ind. Eng. Chem., 20, 553-556 (2009).
  3. Y. H. Lee, T. D. Park, and B. K. Kim, Recycling device for jelly filling cable and recycling method for the same, K.R. Patent 10-0943060 (2010).
  4. M. C. P. B. de Araujo, A. P. Chaves, D. C. R. Espinosa and J. A. S. Tenorio, Electronic scraps - Recovering of valuable materials from parallel wire cables, Waste Manage., 28, 2177-2182 (2008). https://doi.org/10.1016/j.wasman.2007.09.019
  5. I. W. Sung and D. K. Min, A study on the recovery of copper from jelly cable, J. Korea Soc. Waste Manag., 20, 260-265 (2003).
  6. D. K. Min and I. W. Sung, Evaluation of separation on the copper recovery from jelly filled type cable, Korean J. Sanitation, 18, 20-26 (2003).
  7. J. T. Kim, The cable insulation jelly of content washing and separation a way, K.R. Patent 10-0822639 (2008).
  8. Y. J. Park and Y. C. Jang, Apparatus and method for separating jelly from jelly filled cables for communication, K.R. Patent 10-0980077 (2010).

Cited by

  1. Upcycling of Waste Jelly-Filled Communication Cables vol.24, pp.2, 2015, https://doi.org/10.7844/kirr.2015.24.2.29
  2. Highly Efficient Mechanical Separation Process for the Recycling of Waste Jelly-Filled Communication Cables vol.25, pp.3, 2016, https://doi.org/10.7844/kirr.2016.25.3.37