Abstract
The electrochemical behaviour of palladium in dilute acidic chloride solution was investigated using a rotating disc electrode system and the electrowinning of palladium using a modified electrochemical cyclone cell was also carried out. The effect of several variables such as applied voltage, hydrochloric acid concentration and electrolyte flow rate were studied to obtain the optimum conditions for electrowinning. More than 99% of the palladium in solution was recovered within an hour under the optimum conditions using the cyclone cell and grey powdery deposits were observed at a high applied voltage. The purity of palladium electrowon from the leach liquor was at least 99%.
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References
J.E. Ho.mann, J. Metals 40 (1998) 40.
M. Iglesias, E. Antico and V. Salvado, Anal. Chim. Acta 381 (1999) 61.
M. Rovira, L. Hurtado, J.L. Cortina, J. Arnaldos and A.M. Sastre, React. Fuctional Polym. 38 (1998) 279.
E.T. Kang, Y.P. Ting, K.G. Neoh and K.L. Tan, Synth. Met. 69 (1995) 477.
F.K. Letowski and P.A. Distin, Recycle and secondary recovery of metals, in Proceedings of the International Symposium on ‘The Recycle and Secondary Recovery of Metals', The Fall Extractive and Process Metallurgy Meeting, TMS, AIME, Fort Lauderdale, FA (1–4 Dec. 1985), p. 735.
L. Svarovsky and M.T. Thew, ‘Hydrocyclones, Analysis and Applications’ (Kluwer Academic, Dordrecht, 1992).
N. Dhamo, J. Appl. Electrochem. 24 (1994) 745.
N. Dhamo and R. Kammel, Metallwiss. u. Technik 46 (1992) 912.
K-I. Rhee, J-C. Lee, C-K. Lee, K-H. Joo, J-K. Yoon, H-R. Kang, Y-S. Kim and H-J. Sohn, Recycling of metals and engineered materials, in Proceedings of the Third International Symposium, TMS, Point Clear, AL (12–15 Nov. 1995), p. 469.
M. Pourbaix, ‘Atlas of Electrochemical Equilibria in Aqueous Solutions’ (National Association of Corrosion Engineers, 2nd edn, 1974).
A.J. Bard, ‘Encyclopedia of Electrochemistry of the Elements’ Vol. 6(Marcel Dekker, New York, 1976).
V.J. Levich, ‘Physicochemical Hydrodynamics’ (Prentice-Hall, 1962).
J. Legrand, J.M. Marracino and F. Coeuret, J. Appl. Electrochem. 16 (1986) 365.
T. Sasaki and T. Ishikawa, Electrochim. Acta 31 (1986) 745.
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Kim, YU., Cho, HW., Lee, HS. et al. Electrowinning of palladium using a modified cyclone reactor. Journal of Applied Electrochemistry 32, 1235–1239 (2002). https://doi.org/10.1023/A:1021667015212
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DOI: https://doi.org/10.1023/A:1021667015212