Abstract
A recently proposed method using constant current steps were applied for a period of time on a reticulated vitreous carbon cathode. The current steps were calculated from a theoretical analysis of the metal concentration profile assuming that the metal was deposited under mass transport control. A model was developed to predict the concentration decay of metal ions during the process. The current required to reduce the metal at the mass transfer limit at each time step was predicted from the concentration decay obtained from the model. This process should enable one to maintain high metal recovery rates whilst maximizing current efficiency. This concept was tested on Cu(II) deposition from an acidified sulfate electrolyte using a flowby reactor system with a reticulated vitreous carbon electrode. The model was good for predicting copper metal removal using a three dimensional cathode in dilute rinse waters. Also, the predicted current efficiency was in good agreement with that obtained using the experimental data.
References
Dutra, A.J.B., Rocha, G.P., and Pombo, F.R., J. Haz. Mater., 2008, vol. 152, p. 648.
Mandich, N., Metal. Finishing., 2005, vol. 103, p. 29.
Healy, J.P. and Pletcher, D., J. Electroanal. Chem., 1992, vol. 338, p. 155.
Giannopoulou. I., Panias, D., and Paspaliaris, I., Hydrometallurgy., 2009, vol. 99, p. 58.
Widmer, R., Oswald-Krapf, H., Sinha-Khetriwal, D., Schnellmann, M., and Böni, H., Environ. Impact Assessment Review, 2005, vol. 25, p. 436.
Xiao, F., Jun-song, G., and Zu-cheng, W., J. Zhejiang. Univ. Sci. A, 2008, vol. 9, p. 1283.
Gov,UK (2012) http://wwwenvironment-agencygovulc/ business/topics/waste/32196aspx. Accessed 17 October 2012
The European Commission (2012) http://wwwreachreadycouk/News_freephp. Accessed 17 October 2012
Scott, K., Chen, X., Atkinson, J.W., Todd, M., and Armstrong, R.D., Resources, Conservation and Recycling, 1997, vol. 20, p. 43.
Kerr, C., Trans. Inst. Metal. Finishing, 2004, vol. 82, p. B7.
Buckle, R. and Roy, S., Sep. Purif. Technol., 2008, vol. 62, p. 86.
Pletcher, D. and Poorabedi, Z., Electrochim. Acta, 1979, vol. 24, p. 125.
Carpenter, N. and Pletcher, D., Analytica. Chim. Acta, 1995, vol. 317, p. 287.
Roy, S. and Buckle, R., Sep. Purif. Technol., 2009, vol. 68, p. 185.
Das, S.C. and Gopala-Krishna, P., Int. J. Miner. Process., 1996, vol. 46, p. 91.
Hatfield, T.L. and Pierce, D.T., J. Appl. Electrochem., 1998, vol. 28, p. 397.
Yap, C.Y. and Mohamed, N., Chemosphere., 2008, vol. 73, p. 685.
Reyes-Cruz, V., Gonzalez, I., and Oropeza, M.T., Electrochim. Acta, 2004, vol. 49, p. 4417.
Walsh, F.C. and Gabe, D.R., Surf. Technol., 1981, vol. 12, p. 25.
Pletcher, D., Whyte, I., Walsh, F.C., and Millington, J.P., J. Appl Electrochem., 1991, vol. 21, p. 659.
Walsh, F.C. and Reade, G.W., Stud. Environ. Sci., 1994, vol. 59, p. 3.
Walker, A.T. and Wragg, A.A., Electrochim. Acta, 1977, vol. 22, p. 1129.
Robinson, D. and Walsh, F.C., Hydrometallurgy, 1991, vol. 26, p. 93.
Robinson, D. and Walsh, F.C., Hydrometallurgy, 1991, vol. 26, p. 115.
Robinson, D. and Walsh, F.C., Hydrometallurgy, 1991, vol. 26, p. 367.
Gayar, D.A., El-Shazly, E.H., El-Taweel, Y.A., and Sedahmed, G.H., Chem. Eng. J., 2010, vol. 162, p. 877.
Los, P., Lukomska, A., Kowalska, S., and Kwartnik, M., J. Electrochem. Soc., 2014, vol. 161, p. D593.
Xiu-lian, R., Qi-feng, W., Zhe, L., and Jun, L., Trans. Nonferrous. Met. Soc. China, 2012, vol. 22, p. 467.
Coman, V., Robotin, B., and Ilea, P., Resources, Conservation and Recycling., 2013, vol. 73, p. 229.
Abda, M. and Ore, Y., Water. Res., 1993, vol. 27, p. 1535.
Segundo, J.E.D.V., Salazar-Banda, G.R., Feitoza, A.C.O., Vilar, E.O., and Cavalcanti, E.B., Sep. Purif. Technol., 2012, vol. 88, p. 107.
Estrine, E.C., Riemer, S., Venkatasamy, V., Stadler, B.J.H., and Tabakovic, I., J. Electrochem. Soc., 2014, vol. 161, p. D687.
Vasudevan, S. and Oturan, M.A., Environ. Chem. Lett., 2014, vol. 12, p. 97.
Walsh, F. and Reade, G., Analyst., 1994, vol. 119, p. 791.
Walsh, F. and Reade, G., Analyst., 1994, vol. 119, p. 797.
Derek, P., J. Electroanal. Chem., 1987, vol. 218, p. 371.
Meccucci, A. and Scott, K., J. Chem. Technol. Biotechnol., 2002, vol. 77, p. 449.
Silva-Martinez, S. and Roy, S., Sep. Purif. Technol., 2013, vol. 118, p. 6.
Walsh, F.C., A First Course in Electrochemical Engineering, The Electrochemical Consultancy, Romsey, UK, 1993.
Laufer, J., Zhang, E., and Beard, P., IEEE. J. Sel. Top. Quant., 2010, vol. 16, p. 600.
Sobri, S., Electrocrystallisation and recovery of gold from thiosulphate-sulphite aged electrolyte, Dissertation, University of Newcastle, 2006.
Barbosa, L.A.D., Sobral, L.G.S., and Dutra, A.J.B., Miner. Eng., 2001, vol. 14, p. 963.
Bertazzoli, R., Widner, R.C., Lanza, M.R.V., Di-Iglia, R.A., and Sousa, M.F.B., J. Braz. Chem. Soc., 1997, vol. 8, p. 487.
Pletcher, D., Whyte, I., Walsh, F.C., and Millington, J.P., J. Appl. Electrochem., 1991, vol. 21, p. 667.
Reade, G.W., Nahle, A.H., Bond, P., Friedrich, J.M., and Walsh, F.C., J. Chem. Tech. Biotech., 2004, vol. 79, p. 935.
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Published in Russian in Elektrokhimiya, 2016, Vol. 52, No. 1, pp. 82–89.
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Silva-Martínez, S., Roy, S. Metal recovery from low concentration solutions using a flow-by reactor under galvanostatic approach. Russ J Electrochem 52, 71–77 (2016). https://doi.org/10.1134/S1023193516010092
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DOI: https://doi.org/10.1134/S1023193516010092