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Propiconazole and Penconazole as Effective Extractants for Selective recovery and concentration of platinum(IV) and palladium(II) from hydrochloric acid solutions formed in leaching of spent aluminoplatinum and aluminopalladium catalysts

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Abstract

Selective recovery and concentration of platinum(IV) and palladium(II) from hydrochloric acid solutions of varied composition was studied using commercial reagents propiconazole and penconazole as extractants. The ranges of hydrochloric acid concentrations for effective extraction and highly selective separation of platinum metals from Al(III) and Ni(II) with propiconazole (toluene with 15 vol % n-decanol as deluent) and penconazole (chloroform) were determined. The conditions for 10-fold selective concentration of platinum metals with recovery of more than 99.9% of metal ions into the organic phase were found. The conditions for quantitative (>99%) stripping of platinum(IV) with a hydrochloric acid solution of thiourea and palladium(II) with ammonia solution were determined. The results obtained can be used for optimizing the modes of selective recovery of platinum(IV) and palladium(II) from hydrochloric acid solutions formed in leaching of alumina-supported platinum-rhenium, platinum-nickel, and palladium catalysts.

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Authors and Affiliations

  1. Ufa Institute of Chemistry, Russian Academy of Sciences, pr. Oktyabrya 71, Ufa, Bashkortostan, 450054, Russia

    G. R. Anpilogova, R. A. Khisamutdinov, L. G. Golubyatnikova & Yu. I. Murinov

Authors
  1. G. R. Anpilogova
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  2. R. A. Khisamutdinov
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  3. L. G. Golubyatnikova
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  4. Yu. I. Murinov
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Corresponding author

Correspondence to R. A. Khisamutdinov.

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Original Russian Text © G.R. Anpilogova, R.A. Khisamutdinov, L.G. Golubyatnikova, Yu.I. Murinov, 2016, published in Zhurnal Prikladnoi Khimii, 2016, Vol. 89, No. 2, pp. 195−201.

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Anpilogova, G.R., Khisamutdinov, R.A., Golubyatnikova, L.G. et al. Propiconazole and Penconazole as Effective Extractants for Selective recovery and concentration of platinum(IV) and palladium(II) from hydrochloric acid solutions formed in leaching of spent aluminoplatinum and aluminopalladium catalysts. Russ J Appl Chem 89, 206–211 (2016). https://doi.org/10.1134/S1070427216020075

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  • DOI: https://doi.org/10.1134/S1070427216020075

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