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Mechano-chemical Activation of Dolomite

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Abstract

Mechano-chemical activation is a widely used method for increasing the reaction activity of solids and, consequently, to accelerate solid phase reactions and to reduce the temperature of the subsequent thermal decomposition. Thermal decomposition of triboactivated calcium carbonate is a subject of different studies while dolomite decomposition has limited data.

The present work represents a study of thermal stability and phase transitions of mechano-chemical activated dolomite under different conditions, namely using various amounts and kind of milling balls and the duration of activation. Temperatures of decomposition of MgCO3 and CaCO3 are specified. The study includes the determination of the thermal stability and the rate of thermal decomposition of activated dolomite.

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Authors and Affiliations

  1. University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Str., 1756, Sofia, Bulgaria

    Y. Pelovski & I. Dombalov

  2. Central Laboratory of Mineralogy and Cristallography, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 107, 1113, Sofia, Bulgaria

    V. Petkova

Authors
  1. Y. Pelovski
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  2. I. Dombalov
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  3. V. Petkova
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Pelovski, Y., Dombalov, I. & Petkova, V. Mechano-chemical Activation of Dolomite. Journal of Thermal Analysis and Calorimetry 64, 1257–1263 (2001). https://doi.org/10.1023/A:1011517717838

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  • DOI: https://doi.org/10.1023/A:1011517717838

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