Prospects of using ferroalloy catalysts in chemical technology
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https://doi.org/10.32523/2616-6771-2025-151-2-87-102Keywords:
metal ingots, synthesis, ferroalloys, catalyst, modified, aromatic compoundsAbstract
This article examines the chemical stability and catalytic activity of ferroalloy catalysts, which are widely used in the metallurgy and petrochemical industries. The purpose of this study is to determine the catalytic activity of cobalt catalysts with ferroalloy additives in the production of xylitol, and to consider the scientific and technical foundations of effective technologies for the production of methylcyclohexane from toluene. In addition, the physicochemical, structural, and adsorption characteristics of nickel compounds modified with ferroalloys were determined. The main relevance of the work in the article is the introduction of ferroalloys into the composition of binary nickel catalysts, allowing them to be simultaneously updated with several metals contained in ferroalloys and prepared according to their chemical composition, and the stability and efficiency of the catalysts were significantly increased. The choice of the nature and amount of alloying metals in production is based on the classification of modified compounds. Nickel catalysts are introduced into the metal ferroalloy in the form of pieces or powders, which are obtained at the melting temperature as a result of an exothermic reaction, and also have a significant effect on the quantitative and qualitative composition. In this aspect of the article, the selectivity of the catalysts plays an important role, since it allows for the synthesis of the desired products in a high-purity state and reduces the formation of by-products. The possibility of obtaining methylcyclohexane in a high-purity state and high yield by hydrogenation of toluene on cast nickel catalysts upgraded with ferrotitanium manganese (FTiMn), ferromanganese (FTmn), and ferromolybdenum manganese (FTmoMn) ferroalloys was demonstrated. Based on the results obtained, the studied catalysts were Ni-Al-FTmn>Ni-Al-FTmoMn>Ni-Al-FTiMn.Co-(70% Al). In conclusion, it was determined that the service life of Ni-Al-ФMn and Ni-Al-ФMoMn catalysts is twice as long as that of Ni-Al-TiMn catalysts used in production until now.
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Copyright (c) 2025 Satybaldieva Nurgul Kyrgyzbayevna, A. Berkinbayeva, Zh. Yessenbayeva, S. Abilkasova, S. Almagambetova (Author)
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