ISSN (print) 1995-2732
ISSN (online) 2412-9003

 

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DOI: 10.18503/1995-2732-2021-19-4-36-44

Abstract

Problem Statement (Relevance). The Ural region has been a metallurgical center of Russia for over 300 years, resulting in accumulating a large volume of man-made waste (slag) for such a long period. The study of the material composition of slag is a currently important task, since before disposing of slags, their mineral composition should be assessed. Many slags are potential ores that can be further processed; some of them are technology-related refractories, etc. Objectives. The research is aimed at studying the material (mineral) composition of slags of the Staroutkinsky Metallurgical Plant formed when producing ferromanganophosphorus. Methods Applied. A chemical composition of rock-forming and ore minerals is established using a JSM-6390LV Scanning Electron Microscope by Jeol with INCA Energy 450 X-Max 80, an energy-dispersive attachment, by Oxford Instruments (the Institute of Geology and Geochemistry, the Ural Branch of the Russian Academy of Sciences, Yekaterinburg). To carry out the analysis, the authors used polished petrographic thin sections cut from pieces of slag. Originality. A material composition of the slags was studied from a point of view of classical mineralogy, using the modern mandatory nomenclature of the International Mineralogical Association. Findings. For the first time, the authors studied mineralogy of slags at the Staroutkinsky Metallurgical Plant formed when producing ferromanganophosphorus. It has been found that they are composed of a glaucochroite-larnite aggregate with a significant content of akermanite, glass and the constant presence of rankinite, alabandite, and dimanganese phosphide (Mn2P). These slags are wastes of ferromanganophosphorus production, and their formation temperature is within the narrow limits of 1420 to 1410°C. Practical Relevance. The slags under our study can be recycled. All slag can be completely processed by detailed separation. The separated glaucochroite, alabandite and dimanganese phosphide are an additional source of producing manganese, and the rest of the minerals (akermanite, larnite, and rankinite) and glass can be used as binders in cement production.

Keywords

Akermanite, glaucochroite, larnite, alabandite, mineralogy, slags, the Staroutkinsky Metallurgical Plant.

For citation

Erokhin Yu.V., Ponomarev V.S., Zakharov A.V., Leonova L.V. Material Composition of Slags Formed when Producing Ferromanganophosphorus at the Staroutkinsky Plant. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2021, vol. 19, no. 4, pp. 36–44. https://doi.org/10.18503/1995-2732-2021-19-4-36-44

Yury V. Erokhin – PhD (Geology and Mineralogy), Lead Researcher, Institute of Geology and Geochemistry, the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-0577-5898

Vladimir S. Ponomarev – PhD (Geology and Mineralogy), Senior Researcher, Institute of Geology and Geochemistry, the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-1651-1281

Anatoly V. Zakharov – Researcher, Institute of Geology and Geochemistry, the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0001-8790-7892

Lyubov V. Leonova – PhD (Geology and Mineralogy), Senior Researcher, Institute of Geology and Geochemistry, the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-7713-8994

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