Author:
Shushkov D. A.,Burtsev I. N.,Simakova Yu. S.
Abstract
Dense and porous thermal-insulating ceramic materials were obtained from the flotation tailings of coal sludge of the processing plant of Inta town. The thermal behavior, changes in the phase and chemical composition during firing in the temperature range from 800 to 1280 °C were studied. During firing, carbonates dissociated, magnetite oxidized, kaolinite amorphized, layers in layered silicates compressed, at 1100 °C cristobalite and spinel were formed, at 1150 °C – mullite, the content of the amorphous phase increased. Dense ceramic materials were obtained at firing temperatures of 800 – 1150 °C, and porous materials at temperatures 1200 – 1280 °C. The physical, mechanical and technical characteristics of the obtained ceramic materials were studied. Porous ceramics, sintered at 1280 °C, belongs to the class of heat-insulating materials with increased thermal conductivity.
Publisher
Izdatel'skii dom Spektr, LLC
Reference13 articles.
1. Kairakbaev A. K., Abdrakhimova E. S., Abdrakhimov V. Z. Phase composition of heat-insulation materials based on oil-shale wastes // Glass Ceram. 2015. V. 72, No. 3-4. P. 96 – 99.
2. Kairakbaev A. K., Abdrakhimova E. S., Abdrakhimov V. Z. Effect of different coal-enrichment wastes on the physical and mechanical properties and phase composition of heat-insulation materials // Glass Ceram. 2017. V. 74, No. 1-2. P. 55 – 59.
3. Абдрахимов В. З., Лазарева Н. В. Использование отходов флотации углеобогащения в производстве керамзита способствует экологии и расширяет границы землеустройства и кадастров // Архитектура и строительство: строительные материалы и изделия. 2020. № 6. С. 40 – 47.
4. Kotova O. B., Ignatiev G. V., Shushkov D. A., et al. Preparation and properties of ceramic materials from coal fly ash // Minerals: Structure, Properties, Methods of Investigation. Springer Proceedings in Earth and Environmental Sciences. 2019. P. 100 – 107.
5. Apkar’yan A. S., Gubaidulina T. A., Kaminskaya O. V. Foam-Glass Ceramic Based Filtering Material for Removing Iron and Manganese from Drinking Water // Glass Ceram. 2014. V. 74, No. 11-12. P. 413 – 417.