Peer-reviewed articles 17,970 +


Title: UTILIZATION OF ASH FROM THE COMBUSTION OF KUZNETSK AND EKIBASTUZ COALS
UTILIZATION OF ASH FROM THE COMBUSTION OF KUZNETSK AND EKIBASTUZ COALS

PlumX Article Metrics by Elsevier
Leonid Delitsyn; Mikhail Sulman; Ruslan Kulumbegov; Oleg Popel; Alexander Sidorov
10.5593/sgem2024/4.1/s18.44
10.5593/sgem2024/4.1
1314-2704
978-619-7603-71-2
English
24
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
18.Recycling
One of the promising areas of utilization of solid technogenic waste from energy generation is their processing to produce alumina, the production of which is accompanied by the formation of by-products that can be used to produce belite sludge (2CaO•SiO2). The basic schemes of purification of the initial ash from carbon and iron oxides are proposed. Using the example of ash from coal burning in the Ekibastuz basin, the possibility of obtaining two grades of belite sludge is shown. Up to 1.5-1.8 tons of belite sludge can be obtained per ton of recycled ash (depending on its quality), which can be used in cement production. The article presents the results of experimental studies aimed at developing a technology for producing belite sludge from high-alumina ash from coal-fired power plants. The influence of various technological parameters on the process of obtaining the target product has been studied. A solution of sodium silicate with the extraction of 28% silica into it was obtained by the method of alkaline desilination of ash. The possibility of obtaining a white, high-quality belite sludge suitable for the production of white cement by treating a solution of sodium silicate with calcium oxide is shown. At the second stage, during the processing of alumina concentrate, gray belite sludge was obtained suitable for use in the construction industry
[1] Vdovenko M.I. The mineral part of energy coals (physico-chemical research) / Nauka Publishing House of the Kazakh SSR, Alma–Ata. 256 p. 1973.
[2] Borg I.Y. Optical properties and cell parameters in the glaucophane - riebekite series // Contributions to Mineral and Petrology. Germany. V. 15, pp 67-92. 1967
[3] Delitsyn L. M., Ryabov Yu. V., Kulumbegov R. V. [et al.]. The influence of flotation reagents on the extraction of carbon from the ash of coal-fired thermal power plants // Ecology and Industry of Russia. Russia. Vol. 26. No. 2, pp. 14-19. 2022.
[4] Zaravelisa F., Theodorakisa N., Triantafylloua ?., Stivanakis V. Fly ash of Megalopolis and ferroalumina in the production of building materials // Materials Today: Proceedings. Greece. V. 5, pp 27434–27440. 2018
[5] Onaizi Ali M., Waiching Tang, Mugahed Amran, Yanju Liu, Umer Sajjad, Mohammad Alhassan. Towards increased adoption of furnace bottom ash as sustainable building materials: Characterization, standardization, and applications // Journal of Building Engineering. Australia. V. 82, 108274. 2024.
[6] Delitsyn L. M, Kulumbegov R. V., Popel’ O. S., Sul’man M. G. Obtaining Alumina from the Ash of Coal-Fired Power Plants // Thermal Engineering. Russia. Vol. 69, No. 12, pp. 933–941. 2022
[7] Chunbin Guo, Jingjing Zou, Shuhua Ma, Jianlin Yang, Kehan Wang. Alumina Extraction from Coal Fly Ash via Low-Temperature Potassium Bisulfate Calcination // Minerals. China. 9(10). 585 2019.
[8] Babaev D.D., Petropavlovskaya V.B., Novichenkova T.B., Petropavlovski K.S., Zavadko M.Yu. synthesis of geopolymer compositions based on alkaline man-made products of fuel stations // Bulletin of the Tver State Technical University. Series: Construction. Electrical engineering and chemical technologies. Russia. No. 4 (20), pp. 83-90. 2023.
[9] Naghizadeh A., Tchadjie L.N., Ekolu S.O., Welman-Purchase M. Circular production of recycled binder from fly ash-based geopolymer concrete // Construction and Building Materials. South Africa. V.415. 135098. 2024
[10] A.S. Kosarev, V.A. Smoliy, A.V. Skorikov. Assessment of the possibility of using ash and slag wastes of heat power engineering in the production of granular porous aggregate for concrete and heat-insulating filling material // Izvestiya vuzov. Severo-kavkazskiy region. Russia. No 4, pp-111-117. 2018
[11] Ch. Guo, L. Zhao, J. Yang, K. Wang, J. Zou. A novel perspective process for alumina extraction from coal fly ash via potassium pyrosulfate calcination activation method // Journal of Cleaner Production. China. V. 271. Article No. 122703. 2020.
The work was carried out with the financial support of the Russian Science Foundation, grant №. 21-79-30004
conference
https://doi.org/10.5593/sgem2024/4.1/s18.44
Download PDF
Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
First click on Radio Buttons above - Scopus or Clarivate format
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
331-338
1 - 7 July, 2024
website
9757
ash, alumina, belite sludge.

25th SGEM International Conference on Earth & Planetary Sciences


International GeoConference SGEM2025
27 June - 6 July, 2025 / Albena, Bulgaria

Read More		   

SGEM Vienna GREEN "Green Science for Green Life"


Extended Scientific Sessions SGEM Vienna GREEN
3 -6 December, 2025 / Vienna, Austria

Read More
   

A scientific platform for Art-Inspired Scientists!


The Magical World Where Science meets Art
Vienna, Austria

Read More