Effect of Temperature and the Organic Phase Content on the Stripping of Mn(II) from a D2EPHA-KEROSENE Pseudo-Emulsion Using a Sulfuric Acid Aqueous Solution


There are few studies oriented to analyze the interaction between the variables of the stripping process of actual leaching solutions. The aim of this work was to study the effect of temperature and the percent of organic phase in the stripping pseudo-emulsion (D2EPHA and kerosene) on the manganese stripping process. Other studied variables were the acid concentration (H2SO4) in the aqueous phase, the percent of the organic phase in the pseudo-emulsion and the number of stripping stages. This information may be of interest to countries with radical temperature variations. It was discovered that in the range of 10?C to 50?C, temperature improves the depletion of manganese from the D2EPHA. Additionally, the percent of the organic phase should be less than 90% by volume of the pseudo-emulsion to favour the manganese exchange. Moreover, the H2SO4 concentration in the aqueous phase should be less than 1 M to avoid chemical instability of the organic phase.

Share and Cite:

J. Rojas-Montes, R. Pérez-Garibay, A. Uribe-Salas and F. Nava-Alonso, "Effect of Temperature and the Organic Phase Content on the Stripping of Mn(II) from a D2EPHA-KEROSENE Pseudo-Emulsion Using a Sulfuric Acid Aqueous Solution," Engineering, Vol. 4 No. 11, 2012, pp. 723-727. doi: 10.4236/eng.2012.411093.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] L. A. Corathers, “US Geological Survey (USGS) Minerals Yearbook: Manganese-2005,” 2007. http://minerals.usgs.gov
[2] W. Zhang and C. Y. Cheng, “Manganese Metallurgy Review: Part I: Leaching of Ores/Secondary Materials and Recovery of Electrolytic/Chemical Manganese Dioxide,” Hydrometallurgy, Vol. 89, No. 3-4, 2007, pp. 137-159. doi:10.1016/j.hydromet.2007.08.010
[3] N. Mulaudzi and T. Mahlangu, “Oxidative Precipitation of Mn(II) from Cobalt Leach Solutions Using Dilute SO2/ Air Gas Mixture,” The Journal of Southern African Institute of Mining and Metallurgy, Vol. 109, 2009, pp. 375381.
[4] J. Van Rooyen, S. Archer and M. Fox, “Manganese Removal from Cobalt Solutions with Dilute Sulphur Dioxide Gas Mixtures,” The Fourth Southern African Conference on Base Metals, The Southern Africa Institute of Mining and Metallurgy, 2009, pp. 365-376.
[5] V. Menard and G. Demopuolos, “Gas Transfer Kinetics and Redox Potential Considerations in Oxidative Precipitation of Manganese from an Industrial Zinc Sulphate Soltion with SO2/O2,” Hydrometallurgy, Vol. 89, No. 3-4, 2007, pp. 357-368. doi:10.1016/j.hydromet.2007.03.014
[6] T. Sato and T. Nakamura, “Solvent Extraction of Divalent Metals from Sulfuric Acid Solutions by Dialkylphosphoric Acid,” Journal of the Mining and Metallurgical Institute Japan, Vol. 101, No. 1167, 1985, pp. 309-312.
[7] J. Rydberg, M. Cox and C. Musikas, “Solvent Extraction Principles and Practice,” CRC Rress, 2004, p. 480. doi:10.1201/9780203021460
[8] D. Mohapatra, K. Hong-In, C. W. Nam and K. H. Park, “Liquid-Liquid Extraction of Aluminium(III) from Mixed Sulphate Solutions Using Sodium Salts of Cyanex 272 and D2EHPA,” Separation and Purification Technology, Vol. 56, No. 3, 2007, pp. 311-318. doi:10.1016/j.seppur.2007.02.017
[9] X. P. Huo, W. Qin, X. W. Sun and Y. Y. Dai, “Recovery of Chromium (III) by Solvent Extraction with D2EHPA,” Journal of Chemical Engineering of Chinese Universities, Vol. 21, No. 5, 2007, pp. 849-852.
[10] Z. G. Arroyo, M. Stambouli, D. Pareau, A. Buch, G. Durand and M. A. Rodriguez, “Thiosubstituted Organophosphorus Acids as Selective Extractants for Ag(I) from Acidic Thiourea Solutions,” Solvent Extraction and Ion Exchange, Vol. 26, No. 2, 2008, pp. 128-144. doi:10.1080/07366290801904855
[11] M. R. Hossain, S. Nash, G. Rose and S. Alam, “Cobalt Loaded D2EHPA for Selective Separation of Manganese from Cobalt Electrolyte Solution,” Hydrometallurgy, Vol. 107, No. 3-4, 2011, pp. 137-140. doi:10.1016/j.hydromet.2011.02.011
[12] S. Agatzini-Leonardou, P. E. Tsakiridis, P. Oustadakis, T. Karidakis and A. Katsiapi, “Hydrometallurgical Process for the Separation And Recovery of Nickel from Sulphate Heap Leach Liquor of Nickeliferrous Laterite Ores,” Minerals Engineering, Vol. 22, No. 14, 2009, pp. 1181-1192. doi:10.1016/j.mineng.2009.06.006
[13] S. ur Rehman, G. Akhtar, M. A. Chaudry, N. B. Najeebullah and N. Ali, “Mn (VII) Ions Transport by Triethanolamine Cyclohexanone Based Supported Liquid Membrane and Recovery of Mn (II) Ions from Discharged Zinc Carbon Dry Battery Cell,” Journal of Membrane Science, Vol. 366, No. 1-2, 2011, pp. 125-131. doi:10.1016/j.memsci.2010.09.049
[14] C. Y. Cheng, G. Boddy, W. Zhang, M. Godfrey, D. J. Robinson, Y. Pranolo, Z. Zhu and W. Wang, “Recovery of Nickel and Cobalt from Laterite Leach Solutions Using Direct Solvent Extraction: Part 1-Selection of a Synergistic SX System,” Hydrometallurgy, Vol. 104, No. 2, 2010, pp. 45-52. doi:10.1016/j.hydromet.2010.04.009
[15] R. K. Biswas, M. A. Habib and M. G. K. Mondal, “Kinetics and Mechanism of Stripping of Mn(II)-D2EHPA Complex by Sulfuric Acid Solution,” Hydrometallurgy, Vol. 80, No. 3, 2005, pp. 186-195. doi:10.1016/j.hydromet.2005.06.013

Copyright © 2023 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.