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Separation of Aluminum and Iron from Platinum Mixture using Synthetic Extraction Resins

합성(合成) 추출(抽出) 수지(樹脂)를 이용(利用)한 백금용액(白金溶液)으로부터 알루미늄과 철(鐵)의 분리(分離)

  • Lim, Gwang-Il (Department of Chemical Engineering, Kwangwoon University) ;
  • Han, Dong-Hyuk (Department of Chemical Engineering, Kwangwoon University) ;
  • Hwang, In-Sung (Department of Chemical Engineering, Kwangwoon University) ;
  • Han, Choon (Department of Chemical Engineering, Kwangwoon University) ;
  • Lee, Jin-Young (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources(KlGAM)) ;
  • Kim, Joon-Soo (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources(KlGAM)) ;
  • Park, Hyung-Kyu (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources(KlGAM))
  • 임광일 (광운대학교 화학공학과) ;
  • 한동혁 (광운대학교 화학공학과) ;
  • 황인성 (광운대학교 화학공학과) ;
  • 한춘 (광운대학교 화학공학과) ;
  • 이진영 (한국지질자원연구원 광물자원연구본부) ;
  • 김준수 (한국지질자원연구원 광물자원연구본부) ;
  • 박형규 (한국지질자원연구원 광물자원연구본부)
  • Received : 2011.03.23
  • Accepted : 2011.06.02
  • Published : 2011.06.26

Abstract

For the separation of aluminum and iron from platinum mixtures, extraction resins were synthesized and separation efficiencies were compared with those by commercial one, $P_{204}$. During synthesis, the suspension polymerization method was adopted with D2EHPA as an extractant. Also, benzoyl peroxide as a starter was divided into 3parts and injected for the uniform size and dispersion of resin particles. Comparison tests resulted in 100% separation of Fe and Pt for both synthetic and $P_{204}$ resins. In case of Al and Pt, synthetic and $P_{204}$ resin gave extraction efficiencies of 99.9% and 98.9%, respectively. Difference in extractant contents of synthetic resin(61.8%) and $P_{204}$(60%) was considered to give differences in separation efficiencies of aluminum and iron elements. For both resins, separation efficiencies of Al and Fe increased up to $55^{\circ}C$. According to FT-IR analyses of both resins, specific peaks of D2EHPA and crosslinked polystyrene were identified at the wavenumber of $1000cm^{-1}$ and $2900cm^{-1}$ respectively.

수지합성 시 추출제의 고른 분산과 균일한 입자를 만들어 알루미늄과 철의 추출량을 증가시키고자 반응 개시제인 benzoyl peroxide(BPO)의 첨가법을 변화시킨 결과 세 번 나누어 첨가한 3pot의 성능이 가장 우수하였다. D2EHPA를 이용하여 합성한 수지의 경우 Fe와 Pt간에 Fe는 100% 추출되었으며, Al과 pt간의 분리실험에서 99.9%의 Al이 추출되었다. 수입되는 $P_{204}$ 수지 역시 Fe와 Pt간의 분리실험에서 100%의 Fe가 추출되었으며 Al과 Pt간의 분리실험에서는 98.9%의 Al이 추출되는 것을 확인하였다. 합성수지와 $P_{204}$내 추출제 함량은 각각 61.8, 60%이며, 이러한 차이가 추출효율에 차이를 가져오는 것으로 판단된다. 한편 두 수지 모두 $55^{\circ}C$까지는 Al과 Fe의 추출효율이 증가하나, 그 이상의 온도에서는 영향이 없는 것으로 확인되었다. FT-IR분석 결과 추출제에 따른 고유의 피크를 $1000cm^{-1}$에서 확인할 수 있었으며 합성한 추출 수지와 $P_{204}$ 수지 모두 $2900cm^{-1}$에서 가교 폴리스틸렌의 특징적인 피크를 확인하였다.

Keywords

References

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