Analysis of metallurgical methods of red mud utilization

S. Saveliev T. Yarosh O. Babaievska M. Kondratenko D. Baboshko
Received 10.01.2024, Revised 29.03.2024, Accepted 26.04.2024
Abstract

The variety of methods of disposal of red sludge - a by-product of alumina production, the global accumulation of which is steadily increasing, increasing the negative impact on the surrounding natural environment - is noted. It is shown that the vast majority of the most effective disposal methods are based on a combination of pyro- and hydrometallurgical methods. The main scientific and practical results of a number of studies of metallurgical methods of red mud utilization, published in leading professional publications over the past several years, have been analyzed. A conclusion was made about the economic expediency of complex extraction of valuable metals from red mud - iron, aluminum, titanium, scandium. The necessity of conducting research and industrial tests of technologies for waste-free processing of red sludge, taking into account its characteristics, was noted. The purpose of the work is a comparative analysis of metallurgical methods of red mud disposal with the aim of determining the most promising developments for industrial implementation. Methods of scientific research. The work uses general logical methods of scientific research - analysis and synthesis, analogy, generalization. Scientific novelty of the work. On the basis of the conducted analysis, it was established that the most effective methods of metallurgical processing of red mud, are those that provide the greatest degree of metal extraction, are those that combine pyro- and hydrometallurgy processes in an optimal ratio with minimal energy consumption and emissions of harmful substances in environment. The practical significance of the work lies in the expansion of ideas regarding the possible directions of solving the problem of large-scale utilization of red sludge, obtaining conclusions that provide the necessary scientific and technical information for the effective practical application of the most effective methods of metallurgical use of red sludge and indicate promising ways of continuing research in this direction. The results of the work indicate that the current level of development of metallurgical methods for the utilization of red sludge has already approached a position that allows us to confidently determine economically effective, technologically perfect waste-free methods of processing this valuable man-made raw material. Widespread industrial implementation of waste-free metallurgical methods of red mud utilization will not only reduce the cost of alumina production and, accordingly, aluminum, but will also significantly improve the environmental situation in the areas where aluminum industry enterprises are located

Keywords:
red mud; utilization; pyrometallurgy; hydrometallurgy; technology; recovery; leaching; efficiency

Retrieved from Vol. 58, No. 1, 2024

Pages 39–45

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Saveliev, S., Yarosh, T., Babaievska, O., Kondratenko, M., & Baboshko, D. (2024). Analysis of metallurgical methods of red mud utilization. Mining Journal of Kryvyi Rih National University, 58(1), 39-45. https://doi.org/10.31721/2306-5435-2024-1-112-39-45
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