P
Petr Ptáček
Researcher at Brno University of Technology
Publications - 64
Citations - 1174
Petr Ptáček is an academic researcher from Brno University of Technology. The author has contributed to research in topics: Activation energy & Kaolinite. The author has an hindex of 18, co-authored 61 publications receiving 966 citations.
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The kinetic analysis of the thermal decomposition of kaolinite by DTG technique
TL;DR: In this article, the thermal decomposition of kaolinite was studied by differential thermogravimetry (DTG) technique under non-isothermal conditions, and the apparent activation energy and frequency factor for the dehydroxylation of kaolin was evaluated by Kissinger method.
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Isothermal kinetic analysis of the thermal decomposition of kaolinite: The thermogravimetric study
TL;DR: In this paper, the authors investigated the de-hydroxylation of medium ordered kaolinite under isothermal conditions by the thermogravimetric analysis (TGA).
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The non-isothermal kinetic analysis of the thermal decomposition of kaolinite by thermogravimetric analysis
TL;DR: In this article, the authors investigated the dehydroxylation of medium ordered kaolinite under non-isothermal conditions and showed that the rate of third-order reaction (F3) is controlled by the applied condition.
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Kinetics and mechanism of three stages of thermal transformation of kaolinite to metakaolinite
TL;DR: In this article, the authors investigated the influence of heating rate on the formation of metakaolinite during the thermal treatment of kaolinite and showed that the activation energy required for the delamination, dehydroxylation and recombination of silica and alumina tetrahedron into metakolinite is 538, 195 and 143 kJ−mol−1, respectively.
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The kinetics of Al-Si spinel phase crystallization from calcined kaolin
Petr Ptáček,František Šoukal,Tomáš Opravil,Magdaléna Nosková,Jaromir Havlica,Jiří Brandštetr +5 more
TL;DR: In this paper, the apparent activation energy of Al-Si spinel from calcined kaolin was investigated by the differential thermal analysis (DTA) using the Kissinger kinetic approach.