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Study of the Slag of Cyclone Smelting to Choose the Direction of Its Further Use

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Russian Metallurgy (Metally) Aims and scope

Abstract

A granulated slag, which goes to a dump, forms in the metallurgical enterprise near Novoshakhtinsk (Primorye Territory, Far East) upon processing of the germanium-containing raw materials of the Pavlovsk brown coal deposit. The reclamation of this technical waste needs an energy efficient ecologically safe method that meets the requirements of ecological norms. According to modern requirements, the problem of reclamation of the slag of cyclone smelting should be solved before the beginning of operation of the enterprise. The project documentation recommends using the slag of cyclone smelting in building or the production of building materials. The chemical and granulometric compositions of the slag and the properties of the material during interaction with water should be determined to find the direction of reclamation of the slag of cyclone smelting. Using reduction-sulfidizing cyclone smelting with flux and sulfidizer additives, we formed a granulated slag, the properties of which are close to those of the commercial slag of cyclone smelting, under laboratory conditions. Samples are prepared for a further investigation. Using modern experimental techniques, we determined the composition and properties of the slag and performed chemical analysis to find macrocomponent contents and X-ray diffraction analysis for an ecological estimation. The physicochemical and organoleptic characteristics of the slag are determined according to the existing standards. For example, the maximum particle size in the slag is 10 mm and the content of the particles the size of which is more than 5 mm is 9.7%, which corresponds to GOST 5578–94. The density and humidity of the slag are determined. The solution that forms during interaction with water has a weak alkaline reaction, which does not prevent the use of the material in an industrial process. The slag is shown to be suitable for further reclamation.

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Funding

This work was performed in terms of project 18-5-5-42 of the Presidium of the Russian Academy of Sciences.

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Correspondence to I. N. Tanutrov.

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Translated by K. Shakhlevich

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Tanutrov, I.N., Sviridova, M.N. & Potapov, S.O. Study of the Slag of Cyclone Smelting to Choose the Direction of Its Further Use. Russ. Metall. 2020, 89–91 (2020). https://doi.org/10.1134/S0036029520020147

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  • DOI: https://doi.org/10.1134/S0036029520020147

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