Assessment of Pyrometallurgical Scheme Options of Red Mud and Scale Co-processing


The analysis of various options for the use of alumina production wastes (red mud) and oiled scale using various methods of agglomeration to produce conditioned commercial iron is presented. Co-processing utilization of red mud and oiled scale allows to obtain raw materials with an iron content of more than 50%, which meets the modern requirements for charge materials for use in the blast furnace process. The calculation analysis carried out using a mathematical model of blast furnace process, allowed to determine the optimal proportion of the iron-containing material for the partial replacement of charge materials without reducing the technical and economic indicators of blast furnace smelting.

Keywords: Bayer process, red mud, oiled scale, mathematical model, blast furnace process, metallurgical properties, complex utilization

[1] Corneev, V. I. (1991). Red Mud: Properties, Warehousing, Applying. Moscow: Metallurgy, p. 143.

[2] Derevyankin, V. A. (1972). Integrated Use of Low-Quality Bauxite. Moscow: Metallurgy, p. 239.

[3] Leoniev, L. I. (2018). Review of World Red Mud Processing Practices. Part I. Pyrometallurgical methods. Izvestia vuzov. Ferrous Metallurgy, issue 11 (61), pp. 843–858.

[4] Chesnokov, Y. A. (2013). Pyrometallurgical Recycling of Aluminum Production Waste. Vestnik Magnitogorsk State Technical University, issue 3 (43), pp. 19–22.

[5] Chesnokov, Y. A. (2015). Information System Interactive Calculations in Ferrous Metallurgy. Ferrous Metallurgy, issue 12 (1392), pp. 63-67.