Determination of leaching parameters for the recovery of platinum group metals from secondary materials

• Autorzy: Lillkung K. , Aromaa J. , Forsen O.
• Języki publikacji: EN

Abstrakty

EN

The leaching parameters for the recovery of platinum group metals were investigated with potentiostatic measurements using wire electrodes. The dissolution rates of Pt, Pd and Rh were measured in concentrated NaCl solution. The parameters inspected were the temperature, redox potential and chloride content. Measurements were done at temperatures 25–94 °C using four different NaCl concentrations, 62.5–250 g/l. Measurements were done at potentials of 950–1250 mV vs. SCE for Pt and Rh and 380–470 mV vs. SCE for Pd. Although higher temperature, potential and chloride content generally increased the dissolution rate, the effect was found to be nonlinear and slightly different for different metals. Based on the results, strongly oxidizing conditions are needed for the leaching process in order to achieve reasonable dissolution rates.

Słowa kluczowe

EN

platinum dissolution; palladium dissolution; rhodium dissolution; chloride concentration

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2013
• Tom: Vol. 49, iss. 2
• Strony: 463--472
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Lillkung K.

• Aalto University, School of Chemical Technology, PO Box 16200, 00076 Aalto, Finland

autor

Aromaa J.

• Aalto University, School of Chemical Technology, PO Box 16200, 00076 Aalto, Finland,

autor

Forsen O.

• Aalto University, School of Chemical Technology, PO Box 16200, 00076 Aalto, Finland

Bibliografia

• 1. BAGHALHA M., KHOSRAVIAN H., MORTAHEB H., 2009. Kinetics of platinum extraction from spent reforming catalysts in aqua-regia solutions. Hydrometallurgy, 95(3–4), 247–253.
• 2. BARAKAT M.A., MAHMOUD M.H.H., MAHROUS Y.S., 2006. Recovery and separation of palladium from spent catalyst. Applied Catalysis A, General, 301(2), 182–186.
• 3. BENGUEREL E., DEMOPOULOS G.P., HARRIS G.B., 1996. Speciation and separation of rhodium(III) from chloride solutions, a critical review. Hydrometallurgy, 40, 135–152.
• 4. CAWTHORN R.G., 1999. The platinum and palladium resources of the Bushweld Complex. South African Journal of Science, 95, 481–489.
• 5. CLEARE M.J., CHARLESWORTH P., BRYSON D.J., 1979. Solvent Extraction in Platinum Group Metal Processing. J. Chem. Tech. Biotechnol., 29, 210–214.
• 6. COTTON S., 1997. Chemistry of precious metals. Springer.
• 7. FAISAL M., ATSUTA Y., DAIMON H., FUJIE K., 2008. Recovery of precious metals from spent automobile catalytic converters using supercritical carbon dioxide. Asia-Pacific Journal of Chemical Engineering, 3(4), 364–367.
• 8. GRANT R.A., 1989. The Separation Chemistry of Rhodium and Iridium. [In:] L. Manziek (Editor), IPMI Seminar on Precious Metals Recovery and Refining. International Precious Metals Institute, Scottsdale, AZ, USA, 7–18.
• 9. HARJANTO S., CAO Y., SHIBAYAMA A., NAITOH I., NANAMI T., KASAHARA K., OKUMURA Y., LIU K., FUJITA T., 2006. Leaching of Pt, Pd and Rh from automotive catalyst residue in various chloride based solutions. Materials Transactions, 47(1), 129–135.
• 10. IZATT S., BRUENING R., IZATT N., 2012. Some Applications of Molecular Recognition Technology (MRT) to the Mining Industry. [In:] S. Wang, J. Dutrizac, M. Free, J. Hwang and D. Kim (Editors), T.T. Chen Honorary Symposium on Hydrometallurgy, Electrometallurgy and Materials Characterization. Wiley, Orlando, FL, 51–60.
• 11. JIMENEZ DE ABERASTURI D., PINEDO R., RUIZ DE LARRAMENDI I., RUIZ DE LARRAMENDI J.I., ROJO T., 2011. Recovery by hydrometallurgical extraction of the platinum-group metals from car catalytic converters. Minerals Engineering, 24(6), 505–513.
• 12. KAYANUMA Y., OKABE T., MAEDA M., 2004. Metal Vapor Treatment for Enhancing the Dissolution of Platinum Group Metals from Automotive Catalyst Scrap. Metallurgical and Materials Transactions B, 35B, 817–824.
• 13. KIM C.-H., WOO S.I., JEON S.H., 2000. Recovery of Platinum-Group Metals from Recycled Automotive Catalytic Converters by Carbochlorination. Industrial & Engineering Chemistry Research, 39(5), 1185–1192.
• 14. KOKATE S.J., KUCHEKAR S.R., 2010. Reversed phase extraction chromatographic separation of ruthenium(III). Journal of Saudi Chemical Society, 14, 41–45.
• 15. LEE J.Y., RAJU B., KUMAR B., KUMAR J., PARK H., REDDY B., 2010. Solvent extraction separation and recovery of palladium and platinum from chloride leach liquors of spent automobile catalyst. Separation and Purification Technology, 73(2), 213–218.
• 16. LIU G., ICHINOSE T., OWADA S., 2012. Separation of PGMs bearing alumina phase from cordierite in spent automobile catalyst by heating-quenching process, XXVI International Mineral Processing Congress 2012, New Delhi, India, 2966–2979.
• 17. LLOPIS J., 1969. Corrosion of Platinum Metals and Chemisorption. Catalysis Reviews, Science and Engineering, 2(1), 161–220.
• 18. LLOPIS J., TORDESILLAS I.M., MUNIZ M., 1965. Anodic Corrosion of Rhodium in hydrochloric acid solutions. Electrochimica Acta, 10(11), 1045–1055.
• 19. MAHMOUD M.H.H., 2003. Leaching Platinum-Group Metals in a Sulfuric Acid/Chloride Solution. Journal of the Minerals, Metals and Materials Society, 55(4), 37–40.
• 20. MARINHO R.S., AFONSO J.C., DA CUNHA J.W.S.D., 2010. Recovery of platinum from spent catalysts by liquid-liquid extraction in chloride medium. Journal of Hazardous Materials, 179(1–3), 488–494.
• 21. PETERS E., 1973. The Physical Chemistry of Hydrometallurgy. [In:] D.J.I. Evans and R.S. Shoemaker (Editors), AIME International symposium on hydrometallurgy, Chicago, 205–228.
• 22. SHEN S., PAN T., LIU X., YUAN L., WANG J., ZHANG Y., GUO Z., 2010a. Adsorption of Rh(III) complexes from chloride solutions obtained by leaching chlorinated spent automotive catalysts on ion-exchange resin Diaion WA21J. Journal of Hazardous Materials, 179(1–3), 104–112.
• 23. SHEN S., PAN T., LIU X., YUAN L., WANG J., ZHANG Y., GUO Z., 2010b. Adsorption of Pd(II) complexes from chloride solutions obtained by leaching chlorinated spent automotive catalysts on ion exchange resin Diaion WA21J. Journal of Colloid and Interface Science, 345(1), 12–18.