AbstractAbout AuthorsReferences
The influence of carbon and its gasification products on the process of decarbonization of calcium carbonate has been studied by the method of thermodynamic analysis. The intensifying effect of organic matter during heat treatment of calcium carbonate is shown. In addition to carbon, decarbonation reactions are affected by gases released as a result of gasification of the organic part of coal waste. It is theoretically proved that the organic component of coal waste contributes to lowering the temperature of the beginning and end of the decomposition of calcium carbonate. To confirm the theoretical assumptions, experimental studies of the behavior of mixtures under heating were conducted. The influence of organic matter on the decarbonization of pure calcium carbonate and chalk was studied. Products of thermochemical transformations of organic mass increase the efficiency of the process of decarbonization of calcium carbonate using coal enrichment waste as part of the raw material mixture. The organic component of the waste reduces the temperature of the decarbonization process both of pure calcium carbonate and chalk.
A.A. RIAZANOV1, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.);
R.Z. RAKHIMOV2, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it. );
V.I. VINNICHENKO3, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
A.N.RIAZANOV1, Candidate of Sciences(Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.Yu. SHAGIGALIN1, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
I.V. NEDOSEKO1, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
R.Z. RAKHIMOV2, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it. );
V.I. VINNICHENKO3, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
A.N.RIAZANOV1, Candidate of Sciences(Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.Yu. SHAGIGALIN1, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
I.V. NEDOSEKO1, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
1 Ufa State Petroleum Technological University (1, Kosmonavtov Street, Republic of Bashkortostan, Ufa, 450062, Russian Federation)
2 Kazan State University of Architecture and Engineering (1, Zelenaya Street, Kazan, 420043, Republic of Tatarstan, Russian Federation)
3 Kharkiv National University of Civil Engineering and Architecture (40, Sumy Street., 61002, Kharkov, Ukraine)
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2. Wang Y., Lin S.Y., Suzuki Y. Limestone Calcination with CO2 Capture: Decomposition behavior in a CO2 atmosphere. Energy & Fuels. 2007. No. 21. pp 3317–3321. DOI: https://doi.org/10.1021/ef700318c
3. Barsukov S.V. The Study of clinker formation processes during firing of ash mixtures. Poluyanovskii Vestnik. 2006. No. 2, pp. 205-209. (In Russian).
4. Ganopol’skii F.I. About the mineral composition of accompanying coal rocks of the Donbass. Ugol’ Ukrainy. 1985. No. 3, pp. 44–45. (In Russian).
5. Shpirt M. Ya., Artem’ev V. B., Silyutin S. A. Ispol’zovanie tverdykh otkhodov dobychi i pererabotki uglei [The use of solid mine waste and coal processing waste]. Moscow: Gornoe delo. 2013. 432 p.
6. Luginina I.G., Ibatulina L.Kh. at as. The use of coal waste for cement production. Tsement. 1983. No.11, p. 6. (In Russian).
7. Shubin V.I., Kholodnyi A.G., Kopeliovich V.M., Ovcharenko L.V., Vinnichenko V.I. The efficiency analysis of the coal processing waste as an energy-saving additive for the raw mix. VNIIESM. 1991. Iss. 1, pp. 14–21. (In Russian).
8. Klassen V.K., Borisov I.N., Manuilov V.E., Khodykin E.I. Theoretical substantiation and efficiency of using coal waste as a raw material component in cement technology. Stroitel’nye materialy. [Construction Materials] 2007. No. 8, pp. 20–21. (In Russian).
9. Shelikhov N.S., Rakhimov R.Z., Sagdiev R.R., Stoyanov O.V. Low baked hydraulic binders. Problems and Solutions. Vestnik Kazanskogo tekhnologicheskogo universiteta. 2014. No. 2 (17), pp. 59–64. (In Russian).
10. Barbane I., Vitynya I., Lindynya L. Study of the chemical and mineralogical composition of romancement synthesized from Latvia’s clay and dolomite. Stroitel’nye materialy [Construction Materials]. 2013. No. 1, pp. 40–43. (In Russian).
11. Tislova R., Kozlowska A., Kozlowski R., Hughes D. Porosity and specific surface area of Roman cement pastes. Cement and Concrete Research. 2009. Vol. 39. Iss. 10, pp. 950–956.
12. Babushkin V.I., Matveev G.M., Mchedlov-Petrosyan O.P. Termodinamika silikatov [Thermodynamics of silicates]. Moskow: Gosstroiizdat. 1986. 407 p.
13. Karapet’yants M.Kh., Karapet’yants M.P. Osnovnye termodinamicheskie konstanty neorganicheskikh i organicheskikh veshchestv [Basic thermodynamic constants of inorganic and organic substances]. Moscow: Khimiya. 1968. 472 p.
14. Eitel’ V. Fizicheskaya khimiya silikatov [Physical chemistry of silicates]. Moscow: Izd-vo Inostrannoi literatury. 1962. 1055 p.
15. Sklyar M. G. Fiziko-khimicheskie osnovy spekaniya uglya [Physicochemical fundamentals of sintering coal]. Moscow: Metallurgiya. 1984. 200 p.
For citation: Riazanov A.A., Rakhimov R.Z., Vinnichenko V.I., Riazanov A.N. Shagigalin G.Yu., Nedoseko I.V. Features of dissociation of calcium carbonate in the composition of an organo-mineral mixture. Stroitel’nye Materialy [Construction Materials]. 2020. No. 3, pp. 55–61. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2020-779-3-55-61