ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 31, (2) 107 - 115 (1987)


MODEL OF NON-ISOTHERMAL FIRING OF A CYLINDRICAL KAOLIN BODY IN THE DEHYDROXYLATION REGION

II


 
Mazačová Yvona 1, Havrda Jiří 1, Unzeitig Martin 2, Hanykýř Vladimír 1
 
1 Institute of Chemical Technology, Department of the Technology of Silicates, Suchbátarova 5, 166 28 Prague 6
2 Czech Technical University, Engineering Faculty, Suchbátarova 4, 166 07 Prague 6

A general mathematical model of ceramic body firing in the dehydroxylation region, regarding the process as diffusion involving a chemical reaction and conduction of heat with a source, is applied to calculation of time development of concentration and temperature profiles during non-isothermal firing of a cylindrical body of kaolinite. The calculated time development of concentration and temperature profiles was verified experimentally at two heating rates, and a satisfactory agreement was found.


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