Abstract
Aiming at the recovery of copper from smelting slag , a flotation approach was studied. It was found that this slag composed of fine particles with complex association and distribution, in which bornite was the main copper-bearing mineral after a detailed mineralogy analysis via polarizing microscope, SEM and XRD. Consequently, flotation was attempted to recycle Cu in slag containing copper sulphide components. Three key factors affecting flotation were ascertained, namely, grinding fineness, the collector and the pH value, while the recovery of Cu estimated by ICP and XRF. Copper concentrate grading at 14.47 with 79.66% Cu recovery was obtained, in the condition of the grinding fineness of −0.074 mm and the proportion of 80%, reagent dosages of 50 g/t for butyl xanthate and a pH value of 10 adjusted using Na2CO3.
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References
K. Zhao, X. Cheng, Y. Qi, J. Gao, X. Shi, Analysis of copper slag treatment process and new technology of comprehensive utilization. China Nonferrous Metall 41(1), 56–60 (2012)
H. Yang, Y. Yuan, L. Zhang, C. Wang, Q. Tang, Present situation and proposed method of recycling iron and copper from copper slag. Metal Mine (5), 65–168 (2012)
H.S. Altundogan, M. Boyrazli, F. Tumen, A study on the sulphuric acid leaching of copper converter slag in the presence of dichromate. Miner. Eng. 17(3), 465–467 (2004)
W.J. Bruckard, M. Somerville, F. Hao, The recovery of copper, by flotation, from calcium-ferrite-based slags made in continuous pilot plant smelting trials. Miner. Eng. 17(4), 495–504 (2004)
K. Maweja, T. Mukongo, I. Mutombo, Cleaning of a copper matte smelting slag from a water-jacket furnace by direct reduction of heavy metals. J. Hazard. Mater. 164(2–3), 856–862 (2009)
F. Carranza, R. Romero, A. Mazuelos, N. Iglesias, O. Forcat, Biorecovery of copper from converter slags: slags characterization and exploratory ferric leaching tests. Hydrometallurgy 97(1–2), 39–45 (2009)
B. Gorai, R.K. Jana, Premchand, Characteristics and utilisation of copper slag—a review. Resour Conserv Recycl 39(4), 299–313 (2003)
Acknowledgements
The authors gratefully acknowledge the financial support of the National Science Foundation of PRC for the Research Project (2012-51234008).
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© 2017 The Minerals, Metals & Materials Society
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Fan, J., Li, H., Wei, L., Li, C., Sun, S. (2017). The Recovery of Copper from Smelting Slag by Flotation Process. In: Wang, S., Free, M., Alam, S., Zhang, M., Taylor, P. (eds) Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51091-0_21
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DOI: https://doi.org/10.1007/978-3-319-51091-0_21
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