Analysis of the process main variables influence in the rejection of the cathodes during copper electrorefining
DOI:
https://doi.org/10.3989/revmetalm.0729Keywords:
Copper, Electrorefining, Cathodic rejectionAbstract
An experimental circuit of copper electrorefining using three types of anodes coming from three different Chilean foundries: Hernán Videla Lira, Las Ventanas and El Teniente was used to simulate the electrorefining process. In this circuit the problem of the cathode rejection and the influence of some process variables in this phenomenon were studied. The variables analyzed were: electrolyte cell flow, solids in suspension, current density, lead doping in the anodes and density and particle size of the anodic slimes generated. The main results obtained from the experimental circuit were the following: the electrolyte flow doesn’t affect significantly the cathodic rejection, an increase of current density produces a decrease of cathodic rejections, the presence of the solids in suspension causes cathodes outside of norm, and to bigger quantity of lead in the anodes smallest were the rejections.
Downloads
References
[1] T. B. Braun Et. Al., Extractive Metallurgy of Copper, Vol. 1, J. C. Yannoupoulos and J. C. Agarwel (Eds.), AIME, Port City Press, 1976.
[2] P. Mackey y A. Wraith, Miner. Process. Extractive Metall. 13 (2004) 25-37. doi:10.1179/037195504225004652
[3] W. C. Copper, Minerales, 43, Nº183, 1988.
[4] J. D. Scott, Metall. Mater. Trans. B 21 () 629- 635.
[5] F. Noguchi, N. Lida, T. Nakamura e Y. Ueda, Metall. Revi. MMIJ 8 (1992).
[6] B. R. Conrad, Copper Hydrometallurgy, Copper 95- Cobre 95, 1995.
[7] E. N. Petkova, Hydrometallurgy 34(1994) 343- 358. doi:10.1016/0304-386X(94)90071-X
[8] Z. H. Gu, J. Chen y T. Z. Fahidy, Hydrometallurgy 37(1995) 149-167. doi:10.1016/0304-386X(94)00044-4
[9] G. Cifuentes Et Al., EPD Congress, TMS Annual Meeting, San Diego, EE.UU., Marzo, 1999, pp. 645-647.
[10] Z. Mubarok, I. Filzwieser Y P. Paschen, Erzmetall 58 (2005) 203-209.
[11] A. Lafront, B. Veilleux Y E. Ghali, J. Appl. Electrochem. 32 (2002) 329-337. doi:10.1023/A:1015589725641
[12] X.Y. Liu, J. Chem. Phys. 113 (2000) 8.807- 8.816.
[13] J. Dutrizac y T. T. Chen, Proc. Electrorefining and Electrowinning of Copper, 383-403.
[14] E. N. Petkova, Hydrometallurgy 46 (1997) 277- 286. doi:10.1016/S0304-386X(97)00024-8
[15] J. B. Hiskey X. Cheng y, Metall. Trans. B 27B (1998) 53-58.
[16] D. Suárez Y F. Olson, J. Appl. Electrochem. 22 (1992) 1.002-1.010.
[17] B. Veilleuz, A. Lafront Y E. Ghali, Can. Metall. Quart. 40 (2001) 343-354.
[18] B. Veilleuz, A. Lafront Y E. Ghali, Can. Metall. Quart. 41(2002) 47-62.
[19] G. Cifuentes Et Al., Proc. Copper ’99, Volumen III, Phoenix, Arizona, EE.UU., 1999, 427-435.
[20] A. Naranjo, Trabajo de Titulación, Facultad de Ingeniería, Universidad de Santiago de Chile, 2000.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2009 Consejo Superior de Investigaciones Científicas (CSIC)
This work is licensed under a Creative Commons Attribution 4.0 International License.
© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read here the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.
