Authors:
M. Földesová Slovak University of Technology in Bratislava Slovak Republic

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P. Lukáč Slovak University of Technology in Bratislava Slovak Republic

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P. Dillinger Nuclear Research Institute Řež plc. Czech Republic

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E. Klosová Slovak University of Technology in Bratislava Slovak Republic

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Z. Málek Nuclear Research Institute Řež plc. Czech Republic

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E. Večerníková Academy of Sciences of the Czech Republic Institute of Inorganic Chemistry Prague Czech Republic

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V. Balek Nuclear Research Institute Řež plc. Czech Republic

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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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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)