Evaluation of ion exchange resins for iron control in copper electro-winning solutions
DOI:
https://doi.org/10.3989/revmetalm.0941Keywords:
Ion exchange, Iron control, Copper electrowinningAbstract
Two commercial resins were evaluated for the extraction of iron from a copper electrowinning solution. Both resins efficiently extract iron. TheMonophosphonic resin has a greater charge capacity than the Diphonix resin and the Diphonix resin shows faster kinetics. Experimental results of the interrupted test and tests with different particle size of resins have demonstrated that extraction kinetics is controlled by diffusion into the particle in both resins. A good agreement with Fick’s model for diffusion inside the particles confirms the proposed mechanism. Finally, temperature favors the process kinetics and its effect on the diffusion coefficient follows Arrhenius law, obtaining a value of 4,89 kcal/mol for theMonophosphonic resin and 4,94 kcal/mol for the Dphonix resin. The aforementioned values are close to typical values for the proposed diffusional control which are 6 to 10 kcal/mol.
Downloads
References
[1] M.J. Gula, D.B. Dreisinger, J.C. Montijo y S.K. Young, Iron Control and Disposal, Ottawa, Canada, 1996, J.E. Dutrizac yG.B.Harris (Eds.), Canadian Institute of Mining, Metallurgy and Petroleum, Montreal, Canada, pp. 315- 327.
[2] S.S. Xue, M.J. Gula, J.T. Harvey and E.P. Horwitz, SME AnnualMeeting, Salt Lake City, EE.UU., 2000.
[3] D.R. Shaw, D.B. Dreisinger, T. Lancaster, G.D. Richmond yM. Tomlinson, JOM(2004) 38-41.
[4] I.Wilkomirsky, F. Parada y R. Parra, Society of the Canadian Institute of Mining, Metallurgy and Petroleum COM 2002.
[5] R. Chiarizia, E.P. Horwitz, S.D. Alexandratos y M.J. Gula, Separ. Sci. Technol. 32 (1997) 1-35. doi:10.1080/01496399708003184
[6] H.F.Walton, Ion Exhange Equilibria en Ion exchange: theory and application,Academic Press, Primera edición, New York, EEUU, 1949, pp. 3-12.
[7] F. Helfferich, Ion Exchange,McGraw-Hill Book Company, Primera Edición, New York, EE.UU., 1962, 194-308.
[8] T.R. Kressman y J.A. Kitchener, Discuss.s Faraday Soc. 7 (1949) 90.
[9] B. Hering y H. Bliss, A.I.Ch.E. J. 9 (1963) 495-503.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2010 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 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.