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TVT, 2013, Volume 51, Issue 6, Pages 848–854 (Mi tvt152)  

This article is cited in 3 scientific papers (total in 3 papers)

Thermophysical Properties of Materials

Thermal interaction between limestone and silica

V. S. Engel'shta, V. Zh. Muratalievab

a Institute of Physical-Technical Problems and Materials Sciences, National Academy of Sciences, Bishkek, 720071, Kyrgyz Republic
b Kyrgyz State Technical University, Bishkek, 720044, Kyrgyz Republic

Abstract: A thermodynamic analysis of the interaction between limestone and silica is carried out under normal pressure with the use of the TERRA program system. An equilibrium system is considered. The thermodynamic parameters are calculated with a step-by-step increase in temperature. The temperature of calcium silicate synthesis with respect to the initial mixture composition is found. At all possible ratios between limestone and silica, the products of the chemical reaction are determined. The reaction heat, synthesis temperature, enthalpy increment, and heat content are determined. It is shown that wollastonite isothermal synthesis proceeds at $550 K$ at a constant heat content, and rankinite isothermal synthesis proceeds at $750 K$ at a constant heat content as well. The reaction heat increases with rising limestone content until rankinite starts to form and then decreases to zero. The interaction between limestone and silica produces carbon dioxide gas, whose content grows simultaneously with the rising reaction heat. When the rankinite yield is maximal, the amount of carbon dioxide diminishes to zero, because free limestone forms and $\mathrm{CO}_2$ is buried. On the basis of the results, the conclusion is drawn that the reaction proceeds with a latent exotherm due to latent limestone dissociation and formation of lime during the thermal interaction between limestone and silica.

DOI: https://doi.org/10.7868/S0040364413060082

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English version:
High Temperature, 2013, 51:6, 769–775

Bibliographic databases:

UDC: 536.7:662.74
Received: 19.10.2012

Citation: V. S. Engel'sht, V. Zh. Muratalieva, “Thermal interaction between limestone and silica”, TVT, 51:6 (2013), 848–854; High Temperature, 51:6 (2013), 769–775

Citation in format AMSBIB
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\paper Thermal interaction between limestone and silica
\jour TVT
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\vol 51
\issue 6
\pages 848--854
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\crossref{https://doi.org/10.7868/S0040364413060082}
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\transl
\jour High Temperature
\yr 2013
\vol 51
\issue 6
\pages 769--775
\crossref{https://doi.org/10.1134/S0018151X13060084}
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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. W. Ashraf, J. Olek, “Carbonation behavior of hydraulic and non-hydraulic calcium silicates: potential of utilizing low-lime calcium silicates in cement-based materials”, J. Mater. Sci., 51:13 (2016), 6173–6191  crossref  isi
    2. V. S. Engel'sht, V. Zh. Muratalieva, “Rankinite synthesis and pyrolysis inversion”, High Temperature, 55:2 (2017), 226–232  mathnet  crossref  crossref  isi  elib
    3. N. M. Barbin, I. V. Tikina, D. I. Terentev, S. G. Alexeev, M. Yu. Porkhachev, “Determination of thermophysical properties of $45%  Pb$–$55% \rm Bi$ alloy. Thermodynamic simulation”, High Temperature, 55:4 (2017), 506–509  mathnet  crossref  crossref  isi  elib
  • Teplofizika vysokikh temperatur Teplofizika vysokikh temperatur
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