Recovery of Pt from the Chloride Leaching Solution of Spent Catalysts by using Column Extractor

폐촉매(廢觸媒) 염산침출액(鹽酸浸出液)에서 컬럼형 추출기(抽出器)에 의한 백금(白金) 회수(回收)

  • Sun, Pan-Pan (Department of Advanced Materials Science and Engineering, Mokpo National University) ;
  • Lee, Man-Seung (Department of Advanced Materials Science and Engineering, Mokpo National University)
  • 손반반 (목포대학교 공과대학 신소재공학과) ;
  • 이만승 (목포대학교 공과대학 신소재공학과)
  • Received : 2013.07.09
  • Accepted : 2013.08.21
  • Published : 2013.12.31


In order to recover Pt from the hydrochloric acid leaching solution of spent catalysts, bench scale Karr reciprocating column was employed. At an optimum flow rate and vibration frequency, iron and Pt was completely extracted by using TBP and Aliquat 336. At the same vibration frequency, iron and Pt was completely stripped by HCl and $HClO_4$ after adjusting the flow rate. In the case of extraction of HCl from the raffinate with TEHA, it was difficult to maintain the stability of the column extractor. A comparison of the operation results between column extractor and mixer-settler is reported.


Supported by : 환경부


  1. Barakat, M. A., Mahmoud, M. H. H., 2004: Recovery of platinum from spent catalyst. Hydrometallurgy 72, pp. 179-184.
  2. Bernardis, F. L., Grant, R. A., Sherrington, D. C., 2005: A review of methods of separation of the platinum-group metals through their chloro-complexes. React. Funct. Polym. 65, pp. 205-217.
  3. Gupta, B., Singh, I., 2013: Extraction and separation of platinum, palladium and rhodium using Cyanex 923 and their recovery from real samples. Hydrometallurgy 134-135, pp. 11-18.
  4. Rydberg, J., Cox, M., Musikas, C., and Choppin, G.R., 2004: Solvent extraction principles and practice, pp. 315-316. Marcel Dekker, Inc., New York.
  5. Ali, A.M.I., Ahmad, I.M., Daoud, J.A., 2006: Cyanex272 for the extraction and recovery of zinc from aqueous waste solution using a mixer-settler unit. Sep. Purif. Technol. 47, pp. 135-140.
  6. Gharehbagh, F.S., Mousavian, S.M.A., 2009: Hydrodynamic characterization of mixer-settlers. J. TW. Inst. Chem. Eng. 40, pp. 302-312.
  7. Larsson, L., Ekberg, C., Odegaard-Jensen, A., 2013: Using cyanex 923 for selective extraction in a high concentration chloride medium on nickel metal hydride battery waste, Part II: mixer-settler experiments. Hydrometallurgy 133, pp. 168-175.
  8. Sun, P. P., Lee, M.S., 2011: Separation of Pt from hydrochloric acid leaching solution of spent catalyst by solvent extraction and ion exchange. Hydrometallurgy 110, pp. 91-98.
  9. Sun, P. P., Lee, M.S., 2013: Recovery of platinum from chloride leaching solution of spent catalysts by solvent extraction. Mater. Trans. 54, pp. 74-80.
  10. Bassett, J., Denney, R. C., Jeffery, G. H., Mendham, J., 1978: Vogel's textbook of quantitative inorganic analysis, fourth ed., pp. 36-37. Longman, New York.