Composition and Structure of the Shells of Aluminosilicate Microspheres in Fly Ash Formed on the Combustion of Ekibastuz Coal
URI (for links/citations):http://elib.sfu-kras.ru/handle/2311/32989
Fomenko, E. V.
Anshits, N. N.
Vasil’Eva, N. G.
Rogovenko, E. S.
Mikhaylova, O. A.
Mazurova, E. V.
Solovyev, L. A.
Anshits, A. G.
Journal Name:Solid Fuel Chemistry (English Translation of Khimiya Tverdogo Topliva)
Journal Quartile in Scopus:Q3
Journal Quartile in Web of Science:Q4
Bibliographic Citation:Fomenko, E. V. Composition and Structure of the Shells of Aluminosilicate Microspheres in Fly Ash Formed on the Combustion of Ekibastuz Coal [Текст] / E. V. Fomenko, N. N. Anshits, N. G. Vasil’Eva, E. S. Rogovenko, O. A. Mikhaylova, E. V. Mazurova, L. A. Solovyev, A. G. Anshits // Solid Fuel Chemistry (English Translation of Khimiya Tverdogo Topliva). — 2016. — Т. 50 (№ 4). — С. 238-247
Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
A systematic study of the chemical and phase composition and structure of the shells of narrow fractions of nonmagnetic cenospheres separated from a concentrate of fly ash cenospheres from the combustion of pulverized SS (weakly caking coal) coal from the Ekibastuz Basin was carried out. It was found that the separated narrow fractions were characterized by a high Al2O3content of 33–38 wt %. The phase composition included 57–73 wt % vitreous phase, 25–40 wt % mullite, and 1.2–2.5 wt % quartz. An increase in the average diameter, thickness, and porosity of the glass-crystalline shell of globules with the concentration of aluminum was observed. Globules of the following two types were identified in the obtained fractions: spherical globules with an annular structure and foamy globules with a network structure formed from different illite and kaolinite mineral precursors, respectively.