Abstract
A gaseous chlorination process for the hydrometallurgical treatment of a chalcopyrite concentrate was investigated. The overall process is visualized to consist of low-temperature chlorination-selective oxidation, followed by aqueous chloride leaching and SX-EW for producing electrolytic copper, elemental sulfur and ferric oxide. In this article, the chlorination phase of the process is described. Initially, the chlorination behavior of chalcopyrite concentrate micropellets was investigated using a small batch-type fluidized bed reactor. The optimum conditions thereby established were used in continuous chlorination tests. The chlorinated products thus prepared were used in the selective oxidation phase of the investigation.
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References
Dalton, R.F., Diaz, G., Price, R., and Zunkel, A.D., 1991, “The Cuprex Metal Extraction Process: Recovering copper from sulfide ores,” JOM, Vol. 43, pp. 60–65.
Everett, K., and Moyes, A.I., 1992, “The Intec Copper Process,” Proc. Extractive Metallurgy, Gold and Base Metals, Kalgoorlie, Australia, 26–28 October 1992, pp. 287–292.
Herrmann, G., 1911, “Uber die verbindungsfahigkeit der chloride von Cu, Pb, Fe, Zn, Sn and Bi,” Z. Anorg. Chem., Vol. 71, pp. 2579–2583.
Kruesi, P.R., Allen, E.S., and Lake, J.L., 1973, “Cymet Process — Hydrometallurgical Conversion of Base Metal Sulfides to Pure Metals, CIM Bulletin, Vol. 66, pp. 81–87.
Schweitzer, F.W., and Livingston, R.W., 1982, “Duval’s Clear hydro-metallurgical process,” Chloride Electrometallurgy, TMS, pp. 221–227.
Smith, K.A., and Iwasaki, I., 1985, “Chlorination of copper and nickel sulfide concentrates,” Minerals and Metallurgical Processing, Vol. 2, pp. 42–47.
Titi-Manyaka, R., and Iwasaki, I., 1973, “Chlorination behaviors of some metal sulfides as investigated by thermogravimetric analysis,” Transactions SME/AIME, Vol. 54, pp. 37–42.
Titi-Manyaka, R., and Iwasaki, I., 1976, “Chlorination behaviors of complex iron, copper and nickel sulfides,” Transactions SME/ AIME, Vol. 260, pp. 282–288.
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formerly with New Energy and Industrial Technology Development Organization, (NEDO), Tokyo, Japan
formerly with the Central Research Institute, Mitsubishi Materials Corp., Omiya, Japan
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Tamagawa, T., Tabaian, S.H., Fu, N.X. et al. Extraction of copper from chalcopyrite concentrates without sulfuric acid generation via chlorination. Mining, Metallurgy & Exploration 17, 259–263 (2000). https://doi.org/10.1007/BF03403243
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DOI: https://doi.org/10.1007/BF03403243