Journal of Siberian Federal University. Chemistry / High Strength Porous Ceramics Based on Disperse Microspheres of Fly Ash and Pearlite

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Issue
Journal of Siberian Federal University. Chemistry. 2024 17 (3)
Authors
Akimochkina, Galina V.; Fomenko, Elena V.; Fadeeva, Nataliia P.; Kharchenko, Ivan A.; Ryzhkov, Iliia I.; Pavlov, Mikhail V.; Pavlov, Viacheslav F.; Anshits, Aleksandr G.
Contact information
Akimochkina, Galina V.: Institute of Chemistry and Chemical Technology SB RAS Krasnoyarsk, Russian Federation; Fomenko, Elena V.: Institute of Chemistry and Chemical Technology SB RAS aInstitute of Chemistry and Chemical Technology SB RAS; ; Fadeeva, Nataliia P.: Institute of Chemistry and Chemical Technology SB RAS; Institute of Computational Modeling SB RAS Krasnoyarsk, Russian Federation; Kharchenko, Ivan A.: Institute of Computational Modeling SB RAS Krasnoyarsk, Russian Federation; Ryzhkov, Iliia I.: Institute of Computational Modeling SB RAS Krasnoyarsk, Russian Federation; Pavlov, Mikhail V.: Institute of Space Technologies, FRC KSC SB RAS Krasnoyarsk, Russian Federation; Pavlov, Viacheslav F.: Institute of Space Technologies, FRC KSC SB RAS Krasnoyarsk, Russian Federation; Anshits, Aleksandr G.: Institute of Chemistry and Chemical Technology SB RAS Krasnoyarsk, Russian Federation
Keywords
dispersed microspheres; fly ash; perlite; ceramic materials; filtration membranes
Abstract

New high-strength ceramic materials with improved microstructure have been developed based on a narrow fraction of dispersed microspheres with dav = 9 μm and d99 = 27 μm, separated from fly ash from pulverized coal combustion, and the perlite fraction with dav = 14 μm and d99 = 49 μm, obtained by grinding natural raw resources. Determination of the physicochemical characteristics of the resulting materials, including open porosity, acid resistance, liquid permeability, and strength properties, showed that they are promising for use as filtration membranes. The degree of purification during microfiltration of aqueous suspensions was ~ 100 %. The research results can be used to create resource-saving technologies for the integrated processing of large-scale thermal energy waste, purification of liquid and gaseous media in various industries

Pages
339–349
EDN
BVYFOE
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/153815