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  • Author or Editor: J. Pysiak x
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Abstract  

The methods of preparing the samples for kinetic studies are critically discussed with particular consideration to the effect of granulometric characteristics and structure of the material, conditions of performing the measurements, and choice of proper kinetic equation on the reliability of the results obtained.

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Abstract  

Relationships have been established between the average conversion degree and the dissociation time for polydisperse granular material, taking its grain size distribution into account. It has been checked in which cases the kinetic curves obtained by a numerical solution can be described in terms of KEKAM equation.

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Abstract  

Relationships have been established between the average conversion degree and the dissociation time for polydisperse granular material, taking into account its grain size distribution. It has been checked in which cases the kinetic curves, obtained by a numerical solution, can be described in terms of equations R2 and F0.

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Investigations were carried out on the kinetics of thermal decomposition of basic aluminium ammonium sulfate in vacuum. The kinetic model of dissociation of the compound was identified. The results of the kinetic studies and the mechanism of the process are discussed.

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The course of thermal decomposition of basic aluminium ammonium sulfate was investigated. Temperature ranges were established in which dehydration of the compound and liberation of ammonia and sulfur oxides take place. The presented scheme of thermal dissociation of the basic salt was based on the determination of the solid and gaseous products of the reaction.

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Practical aspects of the studies of stages of thermal dissociation of solids, of the kinetics of the stages, and of utilization of general regularities of the process for verification of kinetic studies are discussed.

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