Abstract
The possibility of almost complete metallization of a deep-enrichment magnetite concentrate by its reduction in the fluidized state with hydrogen at low temperatures using chemical catalytic actions is established. The mechanism of the intensifying action of catalysts is considered. Small amounts of potassium and sodium salts are used as the catalysts.
Similar content being viewed by others
References
V. K. Simonov, T. E. Nizhegorodova, S. A. Pchelkin, et al., “Study of metallization processes of a finely dispersed concentrate for gas reduction in layer,” in Diffusion, Sorption, and Phase Transformations in Processes of Metal Reduction (Nauka, Moscow, 1981), pp. 187–191.
L. I. Medvedeva, T. E. Nizhegorodova, A. N. Prazdnik, et al., “Preparation of a metallized powder under fluidized conditions,” in Theory and Practice of Direct Iron Manufacturing (Nauka, Moscow, 1986), pp. 238–241.
V. P. Glushko, L. V. Gurvich, G. A. Bergman, et al. Thermodynamic Properties of Individual Substances (Nauka, Moscow, 1978), Vol. 1, Book 2.
B. P. Nikol’skii, Chemist’s Manual (Khimiya, Moscow, 1966), Vol. 1.
Yu. D. Tret’yakov, Thermodynamics of Ferrites (Khimiya, Leningrad, 1967).
G. V. Samsonov, Physicochemical Properties of Oxides: Manual (Metallurgiya, Moscow, 1978).
P. Kofstad, Non-Stoichiometry, Diffusion and Electrical Conductivity in Binary Metal Oxide (Wiley, New York, 1972).
V. K. Simonov, A. M. Grishin, and V. N. Vlasenko, “Adsorption chemical interactions during the reduction of iron oxides,” Theoriya i Praktika Metallurgii, No. 1, 9–16 (2003).
V. K. Simonov, A. M. Grishin, and L. N. Rudenko, “Influence of chemical catalytic actions on the development of adsorption chemical processes during the gas reduction of iron from its oxides,” Izv. Vyssh. Uchebn. Zaved., Chern. Metall., No. 6, 3–7 (2004).
V. K. Simonov and S. T. Rostovtsev, “Reduction processes in a Fe–O–C–H system under conditions of substance actions,” in Structures of Phases and Reduction Processes of Elements in Solid and Liquid Systems (Nauka, Moscow, 1978), pp. 117–128.
S. Z. Bokshtein, Diffusion and Structure of Metals (Metallurgiya, Moscow, 1973).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.K. Simonov, A.M. Grishin, 2014, published in Elektrometallurgiya, 2014, No. 11, pp. 13–17.
Rights and permissions
About this article
Cite this article
Simonov, V.K., Grishin, A.M. Metallization of a magnetite concentrate by gas reduction in the fluidized state using a chemical catalytic action. Russ. Metall. 2015, 446–449 (2015). https://doi.org/10.1134/S0036029515060154
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0036029515060154