The structure of Karelian shungite was studied using petrographic-mineralogical, X-ray diffraction, and electron-microscopic analysis, and the physicochemical properties of the shungite as a carbon mineral raw material for metallurgical processes were characterized.
Karelian shungite is a carbon mineral with unique properties. This fact is responsible for searching various areas of its application, in particular, to metallurgical processes. The structure of shungite, the ratio between mineral and carbon phases, and the degree of ordering of carbonaceous matter are mainly responsible for its physicochemical properties and, correspondingly, the areas of its application. Thus, it is of considerable scientific and practical interest to study the structure of shungite. Type III Karelian shungite with a carbon content of 20–40% has been studied as the most likely raw material for the electrothermal processes of silicon ferroalloy production. Petrographic-mineralogical, X-ray diffraction, and thermal methods of analysis were used to study the structure of shungite in more detail. Transparent and polished sections, crushed material samples, and shungite ashing products were studied in order to determine the amount and distribution of mineral inclusions in shungite.
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Source: Springer Link Research Archive