Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 97: Issue 1
Heating rate effect on the thermal behavior of ammonium nitrate and its blends with limestone and dolomite
Authors:
T. Kaljuvee Tallinn University of Technology Laboratory of Inorganic Materials Ehitajate tee 5 19086 Tallinn Estonia

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I. Rudjak Tallinn University of Technology Laboratory of Inorganic Materials Ehitajate tee 5 19086 Tallinn Estonia

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E. Edro Tallinn University of Technology Laboratory of Inorganic Materials Ehitajate tee 5 19086 Tallinn Estonia

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A. Trikkel Tallinn University of Technology Laboratory of Inorganic Materials Ehitajate tee 5 19086 Tallinn Estonia

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Pages:
215–221
Online Publication Date:
16 Jul 2009
Publication Date:
01 Jul 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0263-5
Keywords:
Ammonium nitrate; Dolomite; Kinetics; Limestone; TG–DTA; Thermal stability
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Abstract  

The effect of heating rate on the thermal behavior of ammonium nitrate (AN) and on the kinetic parameters of decomposition of AN and its blends with limestone and dolomite was studied on the basis of commercial fertilizer-grade AN and several Estonian limestone and dolomite samples. Experiments were carried out under dynamic heating conditions up to 900 °C at heating rates of 2, 5, 10 and 20 °C min−1 in a stream of dry air using Setaram Labsys 2000 equipment. For calculation of kinetic parameters, the TG data were processed by differential isoconversional method of Friedman. The variation of the value of activation energy E along the reaction progress α showed a complex character of decomposition of AN—interaction of AN with limestone and dolomite additives with the formation of nitrates as well as decomposition of these nitrates at higher temperatures.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
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 1388-6150 (Print)
ISSN 1588-2926 (Online)

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