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The thermal decomposition of the carbonate reaction products

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Abstract

The complex thermal analysis was used in the investigations of the carbonate reaction products in the residue after Al leaching from calcium aluminate-12CaO·7Al2O3 and Selfdisintegrated Powder. The conversion of Al was calculated basing on a content of Al in the pregnant solution as well as in a residue obtained from the kinetic investigations. The third method of measurements of a conversion of Al was presented and discussed. Results show, that the proposed method can be used for conversion estimations with 95% of confidence level as well as for the detection of carbonate products and is useful for an interpretation of the new approach for kinetic mechanism of Al leaching.

Zusammenfassung

Komplexe Thermoanalyse wurde bei der Untersuchung der Karbonat-Reaktionsprodukte im Rückstand nach einem Auslaugen aus Calciumaluminat 12CaO·7Al2O3 und SDP angewendet. Die Umsetzung von Al wurde auf der Grundlage des aus den kinetischen Untersuchungen stammenden Al-Gehaltes in Lösung als auch im Rückstand berechnet. Die dritte Methode zur Messung der Umsetzung von Al wurde dargelegt und diskutiert. Die Ergebnisse zeigen, daß die vorgeschlagene Methode zur Schätzung der Konversionsrate mit einer statistischen Sicherheit von 95% als auch zur Detektion von Karbonatprodukten benutzt werden kann und daß sie außerdem für die Interpretation des neuen Weges für den kinetischen Mechanismus des Auslaugungsprozesses geeignet ist.

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References

  1. J. Gryzymek, Polish Patent Nr. 43443, 43444, (1959).

  2. M. A. Wójcik, ‘The problem of the Formation of the Solid Reaction Products in the Alumina Lixiviation Process from Calcium Alumina-silicates’, Light Metals 1990, AIME Annual Meeting, (1990).

  3. M. A. Wójcik, ‘Some problems in Aluminium Extraction from Selfdisintegrated Sinters Containing Calcium Alumina-Silicates’, 30th annual Conference of Metallurgists, Ottawa, (1991).

  4. A. J. Bielajew, Light Metals Metallurgy, Moscow, 1963.

  5. N. J. Jeremin and J. S. Pawlow, J. Appl. Chemistry, Moscow, (1967).

  6. R. B. Dean and W. J. Dixon, Anal. Chem., 23, 636 (1951)

    Article  CAS  Google Scholar 

  7. H. F. W. Taylor, ‘The Chemistry of Cements’, London, 1964, p. 273.

  8. M. Gawlicki, W. Nocuń-Wczelik and M. Pyzalski, ‘The Hydration Investigation of Calcium Aluminates’, The Third Polish Seminar to the Memory of St. Bretsznajder, (1983).

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  1. University of Mining & Metallurgy Faculty of Ceramics & Materials Engineering, Av. Mickiewicz 30, A-3, 30-059, Cracow, Poland

    M. A. Wójcik

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  1. M. A. Wójcik
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Wójcik, M.A. The thermal decomposition of the carbonate reaction products. Journal of Thermal Analysis 43, 149–156 (1995). https://doi.org/10.1007/BF02635977

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  • DOI: https://doi.org/10.1007/BF02635977

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