Abstract
M/S Hindustan Copper Limited (HCL), India generates large amounts of lean sulfide ores of copper. The current production of lean copper ores in India is 0.55 million tons with ∼0.3% average copper content. Heap-bioleaching of the lean copper ores in 15 and 30 ton scales was undertaken at IMMT, Bhubaneswar. The leaching study showed 0.09% dissolution of copper from the ore body per day. The leach liquor was processed through solvent extraction and electrowinning. Extraction of copper from the actual leach liquor was carried out with 1.5% LIX 622N in kerosene with zero co-extraction of iron. The copper-free raffinate was fed back to the leaching unit. Stripping of copper from the loaded organic was carried out with 180 kg/m3 H2SO4. The copper pregnant electrolyte was passed through a carbon column to make it free from entrained organic and was fed to the electrowinning unit. The increase in current efficiency was due to the increase in the concentration of electrolyte. The energy consumption was 1.7 kWh/kg at a flow rate of 4.5 L/h. Smooth and bright sheets of copper of 99.99% purity were obtained.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
A. T. Bull, Korean J. Chem. Eng., 18, 137 (2001).
D. E. Rawling, D. Dew and C. du Plessis, Trends in Biotechnology, 21, 38 (2003).
S. Panda, S. Behera, T. Subbaiah, L. B. Sukla, V. N. Misra, O. P. Chugh and M. S. R. Prasad, ICME, 172 (2005).
L. B. Sukla, G. Roy, Chaudhury, R. N. Kar, T. Das, N. Pradhan, V. N. Misra, O. P. Chugh and M. S. R. Prasad, International conference on non-ferrous metal, pune, pp. 10/1–10/11 (2005).
J. M. Modak, K. A. Natarajan and S. Mukhopadhyay, Hydrometallurgy, 42, 51 (1996).
D. I. Vanzyl, (Editor), I. P. G. Hutchinson, J. E. Kiel, (Editors), D. I. Vanzyl, (Author), First Edition, published by Society for Mining Metallurgy, 1, pp. 3107 (1988).
M. S. Rua, A. Almela and M. P. Elizalde, Fluid Phase Equilibria, 258, 186 (2007).
G. Owusu, Hydrometallurgy, 51, 1 (1999).
A. Ocio and M. P. Elizalde, Solv. Extr. Ion Exch., 24, 861 (2006).
A. M. Sastre and F. J. Alguacil, Chem. Eng., 81, 109 (2001).
M. S. Prasad, V. P. Kenyen and D. N. Assar, Miner. Process. Extr. Metall., 8, 95 (1992).
T. O. K. Koyama, S. Alam, M. Tankal and J. C. Lee, Hydrometallurgy, 89, 1–2, 82–88 (2007).
A. Agarwal, K. D. Sarita, B. K. Bagchi and B. D. Panday, Miner. Eng., 20, 95 (2007).
S. Varavara, L. Muresan, I. C. Popescu and G. Maurin, Hydrometallurgy, 75, 147 (2004).
S. Wang, J. of Metals, 56, 34 (2004).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sukla, L.B., Nathsarma, K.C., Mahanta, J.R. et al. Recovery of copper values from bio-heap leaching of low grade Malanjkhand chalcopyrite ore. Korean J. Chem. Eng. 26, 1668–1674 (2009). https://doi.org/10.1007/s11814-009-0271-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-009-0271-y