Heat Conductivity of a Composite Phosphate Ore Material with Reacting Carbonate Inclusions

A combined model of heat conductivity has been proposed, which makes it possible to calculate the heat conductivity coefficient of weakly carbonate phosphorus-containing ore rocks with allowance for the structural features of phosphorites. To calculate the heat conductivities of carbonate phosphorit...

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Bibliographic Details
Published in:Theoretical foundations of chemical engineering 2022-12, Vol.56 (6), p.971-977
Main Authors: Meshalkin, V. P., Bobkov, V. I., Dli, M. I., Orekhov, V. A., Garabadzhiu, A. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Composite materials
Inclusions
Industrial Chemistry/Chemical Engineering
Mathematical models
Phosphorite
Structural models
Thermal conductivity
Thermal transformations
Thermophysical models
Thermophysical properties
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Summary:A combined model of heat conductivity has been proposed, which makes it possible to calculate the heat conductivity coefficient of weakly carbonate phosphorus-containing ore rocks with allowance for the structural features of phosphorites. To calculate the heat conductivities of carbonate phosphorites, a structural model of a composite material with reacting inclusions was proposed. The use of a combination of the developed models and the thermophysical properties of the main rock-forming minerals determined in this study makes it possible to calculate the heat conductivities of a wide class of phosphate ores, including in the temperature zone of thermal transformations in the material. An additive model was used to calculate the true heat capacity of phosphorites. The results of calculations based on the models were compared with real experiments.
ISSN:0040-5795
1608-3431
DOI:10.1134/S0040579522060112