자원리싸이클링 (Resources Recycling)

  • 제22권5호
  • /
  • Pages.29-34
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  • 2013
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  • 2765-3439(pISSN)
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  • 2765-3447(eISSN)
한국자원리싸이클링학회 (The Korean Institute of Resources Recycling)
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염산용액(鹽酸溶液)에서 Tri 2-Ethylhexyl Amine(TEHA)에 의한 백금과 로듐의 분리(分離)

Separation of Platinum(IV) and Rhodium(III) from Acidic Chloride Solution by Solvent Extraction with Tri 2-Ethylhexyl Amine(TEHA)

  • 손반반 (목포대학교 공과대학 신소재공학과) ;
  • 이만승 (목포대학교 공과대학 신소재공학과)
  • Sun, Pan-Pan (Department of Advanced Materials Science & Engineering, Mokpo National University) ;
  • Lee, Man-Seung (Department of Advanced Materials Science & Engineering, Mokpo National University)
  • 투고 : 2013.05.07
  • 심사 : 2013.07.01
  • 발행 : 2013.10.30
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초록

TEHA와TEHA 및TBP와 LIX63과의 혼합용매를 사용하여 염산용액으로부터 백금과 로듐을 분리하기 위한 용맥추출실험을 수행하였다. 염산농도 1-9 M 범위에서 추출제의 농도에 따른 두 금속의 추출거동과 분리 가능성을 조사하였다. 혼합용액에서 백금과 로듐의 농도는 각각 $1{\times}10^{-3}M$과 $2{\times}10^{-4}M$로 조절하였다. TEHA와 혼합추출제에 의한 추출시 로듐의 추출율은 추출조건에 의존하나, 백금은 염산농도와 무관하게 모두 추출되었다. 혼합용액에서 염산농도가 낮을 경우 로듐이 추출되지 않아 백금과 로듐의 분리가 가능하였다. LIX63을 첨가한 TEHA는 로듐의 추출율을 향상시켰으나, TBP를 첨가한 TEHA는 두 금속의 추출에 거의 영향을 미치지 않았다.

Solvent extraction experiments were performed to separate platinum and rhodium from mixed chloride solution by using tri 2-ethylhexyl amine (TEHA) and its mixture with TBP and LIX 63. Effects of extraction conditions on the separation of the two metals were investigated as a function of extractant concentration in the HCl concentration range from 1 to 9 M. The concentration of Pt (IV) and Rh(III) was controlled to $1{\times}10^{-3}M$ and $2{\times}10^{-4}M$, respectively. In the extraction with TEHA and its mixture, Pt was quantitatively extracted irrespective of HCl concentration, while the extraction percentage of Rh depended on the extraction condition. When the concentration of HCl in the mixed solution was low, the extraction of Rh was nil and separation of Pt and Rh was possible. Adding TBP to TEHA had little effect on the extraction of both metals, while adding LIX63 to TEHA favored the extraction of Rh.

키워드

참고문헌

  1. Jaree, A., khunphakdee, N., 2011: Separation of concentrated platinum (IV) and rhodium (III) in acidic chloride solution via liquid-liquid extraction using trioctylamine, J. Ind. Eng. Chem. 17, pp. 243-247. https://doi.org/10.1016/j.jiec.2011.02.013
  2. National research council, 2008: Minerals, critical minerals, and the U.S. economy, pp. 137-147, National Academies Press, Washington.
  3. Lee, M.S., 2010. Chemical properties and dissolution technology of platinum group metals in solutions. J. of Korean Inst. of Resources Recycling 19 (5), pp. 3-12.
  4. Benguerel, E., Demopoulos, G. P., Harris, G. B., 1996: Speciation and separation of rhodium (III) from chloride solutions: a critical review, Hydrometallurgy 40, pp. 135-152. https://doi.org/10.1016/0304-386X(94)00086-I
  5. Kumar, J.R., Lee, H.I., Lee, J.Y., Kim, J.S., Sohn, J.S., 2008: Comparison of liquid-liquid extraction studies on platinum (IV) from acidic solutions using bis (2, 4, 4-trimethylpentyl) monothiophosphinic acid, Sep. Purif. Technol. 63, pp. 184-190. https://doi.org/10.1016/j.seppur.2008.04.014
  6. Mhaske, A. A., Dhadke, P. M., 2001: Extraction separation studies of Rh, Pt and Pd using Cyanex 921 in toluene-a possible application to recovery from spent catalysts, Hydrometallurgy 61, pp. 143-150. https://doi.org/10.1016/S0304-386X(01)00152-9
  7. Lee, J. Y., Kumar, J. R., Kim, J.S., Kim, D. J., Yoon, H.S., 2009: Extraction and separation of Pt (IV) /Rh (III) from acidic chloride solution using Aliquat 336, J. Ind. End. Chem. 15, pp. 359-364. https://doi.org/10.1016/j.jiec.2008.12.006
  8. Lee, J.Y., Kumar, J. R., Kim, J. S., Park, H. K., Yoon, H. S., 2009: Liquid-liquid extraction/separation of platinum (IV) and rhodium (III) from acidic chloride solutions using tri-iso-octylamine, J. Hazard. Mater. 168, pp. 424-429. https://doi.org/10.1016/j.jhazmat.2009.02.056
  9. Nowottny, C., Halwachs, W., Schugerl, K., 1997: Recovery of platinum, palladium and rhodium from industrial process leaching solutions by reactive extraction, Sep. Purif. Technol. 12, pp. 135-144. https://doi.org/10.1016/S1383-5866(97)00041-5
  10. Sun, P. P., Lee, M. H., Lee, M. S., 2010: Separation of Rh (III) from the mixed chloride solutions containing Pt (IV) and Pd (II) by extraction with Alamine 336, Bull. Korean Chem. Soc. 31, pp. 1945-1950. https://doi.org/10.5012/bkcs.2010.31.7.1945
  11. Shen, S., Pan, T., Liu, X., Yuan, L., Wang, J., Zhang, Y., Guo, Z., 2010: Adsorption of Rh (III) complexes from chloride solutions obtained by leaching chlorinated spent automotive catalyst on ion-exchange resin Diaion WA21J, J. Hazard. Mater. 179, pp. 104-112. https://doi.org/10.1016/j.jhazmat.2010.02.064
  12. Sun, P.P., Lee, J. Y., Lee, M.S., 2012: Separation of Pt(IV) and Rh(III) from acidic Chloride Solution by ion exchange with anion resins, Hydrometallurgy 113-114, pp. 200-204. https://doi.org/10.1016/j.hydromet.2011.12.009
  13. Kononova, O.N., Melnikov, A.M., Borisova, T.V., 2012: Simultaneous sorption recovery of platinum and rhodium from sulfate-chloride solutions, Hydrometallurgy 117-118, pp. 101-107. https://doi.org/10.1016/j.hydromet.2012.02.014
  14. Sun, P.P., Lee, J. Y., Lee, M.S., 2011: Separation of Pt(IV) and Rh(III) from Chloride Solution by solvent extraction with amine and neutral extractants, Mater. Trans. 52, pp. 2071-2076. https://doi.org/10.2320/matertrans.M2011159
  15. Eyal, A. M., Hazan, B., Bloch, R., 1991. Recovery and concentration of strong mineral acids from dilute solutions through LLX. II. Reversible extraction with branchedchain amines, Solvent Extr. Ion Exch., 9(2), pp. 211-222. https://doi.org/10.1080/07366299108918051
  16. Banda, R., Nguyen, T.H., Lee, M. S., 2013: Recovery of HCl from chloride leach solution of spent HDS catalyst by solvent extraction, Chem. Process Eng. 34(1), pp. 153-163.
  17. Bassett, J., Denney, R. C., Jeffery, G. H., Mendham, J., 1978: Vogel's textbook of quantitative inorganic analysis, pp. 36-37. Longman, New York.
  18. Haghshenas, D.F., Darvishi, D., Rafieipour, H., Alamdari, E. K., Salardini, A.A., 2009: A comparison between TEHA and Cyanex 923 on the separation and the recovery of sulfuric acid from aqueous solutions, Hydrometallurgy 97, pp. 173-179. https://doi.org/10.1016/j.hydromet.2009.02.006
  19. Levitin, G., Schmuckler, G., 2003. Solvent extraction of rhodium chloride from aqueous solutions and its separation from palladium and platinum. Reactive & Functional Polymers 54, pp. 149-154. https://doi.org/10.1016/S1381-5148(02)00190-6

피인용 문헌

  1. Separation of Ir(IV) and Rh(III) from strong hydrochloric acid solutions by solvent extraction with amines vol.36, 2016, https://doi.org/10.1016/j.jiec.2016.02.006