Abstract
A new method of burning the molybdenite concentrate is developed. An installation is used in which material is burned in the vortical flow of the oxidizer with obtaining the cinder. It is established that, at a temperature of 600°C and air consumption of 100–120 m 3 /h, 98.7% of MoS2 transforms into MoO3 and 85% of Re sublimes in 0.5 h. The sulfur content in the cinder is <1.8%. Upon treating the cinder with a potassium carbonate solution, up to 96.5% Mo is extracted. This method provides a rather high productivity, it is rather simple, it does not require large expenses for equipment and exploitation, it is promising, and it can be used for burning other materials containing sulfides of metals.
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References
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FRG Patent 3843172, 1990.
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Original Russian Text © D.V. Ovtsyn, V.V. Kostyunin, V.N. Potapov, G.N. Kozhevnikov, 2009, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2009, No. 3, pp. 18–20.
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Ovtsyn, D.V., Kostyunin, V.V., Potapov, V.N. et al. Method of burning the molybdenite concentrates. Russ. J. Non-ferrous Metals 50, 206–208 (2009). https://doi.org/10.3103/S1067821209030031
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DOI: https://doi.org/10.3103/S1067821209030031