Abstract
The scientific theoretical prerequisites for the use of small additives of nitric acid for the intensification of the autoclave oxidative leaching (AOL) of sulfide concentrates are checked in order to increase the degree of extraction of the base metal with a simultaneous decrease in the cost of the process. The technological parameters of the AOL conditions applied to molybdenite are also refined, and recommendations for a practical application of the apparatus of the process and for a decrease in its cost are made.
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References
G. E. Kingsley, “Process for Treating Sulfides Ores,” US Patent 1144480, 1915.
C. G. Anderson, “Theoretical Considerations of Sodium Nitrite Oxidizing and Fine Grinding in Refractory Precious Metals Concentrate Pressure Leaching,” (International Precious Metals Institute, Allentown, 1993), pp. 19–45.
E. Peters, “Hydrometallurgical Process Innovations,” Hydrometallurgy 29, 431–459 (1992).
G. C. Westby, “Treating Sulfide Ores of Copper, Zinc, or Other Metals,” US Patent 1244811, 1918.
C. G. Anderson, “Applications of NSC Pressure Leaching,” in Pressure Hydrometallurgy 2004 (Canad. Inst. Mining, Metallurgy and Petroleum, Montreal, 2004), pp. 855–886.
F. Habashi, “Nitric Acid in Hydrometallurgy of Sulfides” (TMS-AIME, Warrendale—PA, 1999), pp. 357–364.
C. G. Anderson, “Treatment of Metal Bearing Mineral Materials,” US Patent 5096486, 1992.
C. G. Anderson, “Optimization of Nitric-Sulfuric Acid Pressure Leaching of Silver from Refractory Sulfide Concentrate,” Precious Metals, No. 7, 119–151 (1990).
A. I. Zelikman, Molybdenum (Metallurgiya, Moscow, 1970) [in Russian].
“Hydrometallurgical Production of Technical Grade Molybdic Oxide from Molybdenite Concentrates,” US Patent 3988418, 1976.
A. S. Medvedev, F. Sh. Bolgaeva, and P. V. Aleksandrov, Search Studies on Treating Low Grade Molybdenum Concentrate by the Nitric Acid Method (MISiS, Moscow, 2008) [in Russian].
“Production of Pure Molybdenum Oxide from Low Grade Molybdenite Concentrates,” US Patent WO/02/089944, 2002.
“Pressure Oxidation Process for the Production of Molybdenum Trioxide from Molybdenite,” US Patent 6149883, 2000.
I. P. Smirnov, N. I. Chuikina, and E. A. Kanevskii, “Regularities of Oxidation and Dissolution of Molybdenite in a Sulfuric Acid Medium Involving Nitric Acid under Atmospheric and Elevated Oxygen Pressures,” in Proceedings of the First All-Union Conference on Hydrometallurgy (VNIIKhT, Moscow, 1974), pp. 9–14.
I. P. Smirnov, V. I. Zerkalov, and N. I. Chuikina, “Some Questions of the Oxidation of Molybdenite with Nitric Acid,” Tsvetn. Met., No. 11, 44 (1975)
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Original Russian Text © K.M. Smirnov, N.A. Raspopov, Ya.M. Shneerson, A.Yu. Lapin, G.A. Bitkov, Yu.A. Men’shikov, P.N. Paskhin, V.P. Kirichenko, 2010, published in Metally, 2010, No. 4, pp. 11–19.
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Smirnov, K.M., Raspopov, N.A., Shneerson, Y.M. et al. Autoclave leaching of molybdenite concentrates with catalytic additives of nitric acid. Russ. Metall. 2010, 588–595 (2010). https://doi.org/10.1134/S0036029510070025
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DOI: https://doi.org/10.1134/S0036029510070025