Abdrakhimov V.Z. Recycling of Metallurgical Waste without the Use of Natural Traditional Materials in the Production of Acid-Resistant Materials

DOI: 10.18503/1995-2732-2023-21-2-21-28

Abstract

Problem Statement. Factoring into the depletion of silicate aluminum-containing traditional raw materials for the production of ceramic materials of the construction application, it is necessary to find and study how to replace them with industry-related raw materials. Such experience has been shown by advanced foreign states that also used is as a tool for protecting the environment against various negative consequences. Objectives. The research is aimed at producing acid-resistant materials based on metallurgical waste, namely a clay part of gravity tailings of zircon-ilmenite ores (GZI) used as a clay binder and ferrotitanium slag used as a leaner without the use of natural traditional materials; studying the effect of slag on the technical characteristics of acid-resistant materials. Methods Applied. To study the raw materials, modern chemical analysis methods were used in the research: JSM 6390A, a scanning electron microscope by Jeol, Japan, to perform an elemental analysis; immersion liquids, transparent sections and polished sections, microscopes MIN-8 and MIN-7 were used for the petrographic study. To determine the technical properties, GOST 961-89 “Acid-resistant and thermostable acid-resistant ceramic tiles” of the KSh brand (acid-resistant chamotte) was used. Result. The studies have shown that the use of GZI without ferrotitanium slag, which is applied as a leaner, does not contribute to producing acid-resistant tiles in compliance with the requirements of GOST 961-89 for acid resistance even at a firing temperature of 1300 ℃ because of a higher content of iron oxide (Fe2O3 >6%) in GZI. Introducing ferrotitanium slag, containing aluminum oxide A12O3 > 70%, into compositions of ceramic mixtures contributes to an increase in acid resistance. Practical Relevance. The use of ferrotitanium slag with an increased content of aluminum oxide makes it possible to produce acid-resistant tiles with increased technical indicators.

Keywords

clay part, ferrotitanium slag, acid-resistant tiles, metallurgical waste, ecology

For citation

Abdrakhimov V.Z. Recycling of Metallurgical Waste Without the Use of Natural Traditional Materials in the Production of Acid-Resistant Materials. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2023, vol. 21, no. 2, pp. 21-28. https://doi.org/10.18503/1995-2732-2023-21-2-21-28

Vladimir Z. Abdrakhimov – DrSc (Eng.), Professor, Honorary Worker of Higher Professional Education of the Russian Federation, Professor of the Department of Ecology and Land Use, Samara State Economic University, Samara, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-1832-2572

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