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Influence of temperature on natural and chemically modified zeolites

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Abstract

Zeolites from Nižný Hrabovec (Slovak Republic) were, modified with solutions of NaOH. The changes of zeolites in the temperature range 20–1200 °C were studied by thermal analysis (DTA, TG, ETA), X-ray analysis and REM analysis. Thermal analysis showed that the process of dehydration started between temperatures 20 and 600 °C, over this temperature the dealumination and structural changes have taken place. X-ray analysis and REM analysis showed the structural changes of natural zeolites and gradual loss of cristallinity of the chemically modified zeolites.

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Authors and Affiliations

  1. Slovak University of Technology in Bratislava, Slovak Republic

    M. Földesová, P. Lukáč & E. Klosová

  2. Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic

    E. Večerníková

  3. Nuclear Research Institute, Řež plc., Czech Republic

    P. Dillinger, Z. Málek & V. Balek

Authors
  1. M. Földesová
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  2. P. Lukáč
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  3. P. Dillinger
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  4. E. Klosová
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  5. Z. Málek
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  6. E. Večerníková
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  7. V. Balek
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Földesová, M., Lukáč, P., Dillinger, P. et al. Influence of temperature on natural and chemically modified zeolites. J Radioanal Nucl Chem 229, B117–121 (1998). https://doi.org/10.1007/BF02389458

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  • DOI: https://doi.org/10.1007/BF02389458

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