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Influence of carbon and water vapour on the thermal dissociation of a basic aluminium-potassium sulfate

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Abstract

The process of obtaining a special aluminium oxide by means of the thermal dissociation of a basic aluminium-potassium sulfate in the presence of carbon (soot) and water vapour was studied. Under these conditions, the dissociation of the basic salt occurs at a lower temperature than in presence of air. K2O-Al2O3 and/or Al2O3 are formed as fine-grained reaction residues, depending on the final temperature. The technologically useful range of temperatures for the process was established.

Zusammenfassung

Der Herstellungsprozess eines speziellen Aluminiumoxids durch thermische Zersetzung von basischem Kalium-aluminium-sulfat in Gegenwart von Kohlenstoff (Russ) und Wasserdampf wurde untersucht. Unter diesen Bedingungen verläuft die Zersetzung bei tieferer Temperatur als in Gegenwart von Luft, und K2O.Al2O3 und/oder Al2O3 werden als feinkörnige Endprodukte (abhängig von der Endtempeatur) erhalten. Der technologisch günstigste Temperaturbereich für den Prozess wurde ermittelt.

Резюме

Изучен процесс получ ения специальной оки си алюминия путем терми ческой диссоциации основно й соли калий-алюминий сульфата в присутствии углерод а (сажи) и паров воды. В таких условиях диссоциация основно й соли происходит при более низкой температуре, чем в атмосфере возду ха. При этом, в зависимо сти от конечной температур ы, образуются К2ОАl2О3 или Аl2О3 в форме тонкои змельченных реакционныхостатко в. Для этого процесса установлена техноло гически полезная обл асть температур.

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References

  1. J. Pysiak and B. Pacewska. The Manufacture of the Aluminium Materials by Means of Acidic Method, Documentation of Warsaw Technical University.

  2. Fiodoritienko and A. K. Zapolskij, Chim. Techn., 3 (1978) 5.

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  3. B. Pacewska and J. Galiszek (unpublished results).

  4. D. R. Stull, E. F. Vestnem and G. E. Sinke, The Chemical Thermodynamics of Organic Compounds, New York, 1969.

  5. V. A. Kireyev, The Methods of Practical Calculations in Thermodynamics of Chemical Reactions (in Russian), Moscow, 1975.

  6. Powder diffraction File, 1973, Joint Committes on Powder Standards, Pennsylvania, USA.

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Pacewska, B., Pysiak, J. Influence of carbon and water vapour on the thermal dissociation of a basic aluminium-potassium sulfate. Journal of Thermal Analysis 33, 511–517 (1988). https://doi.org/10.1007/BF01913930

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  • DOI: https://doi.org/10.1007/BF01913930

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