Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 41: Issue 4
Study of the thermal decomposition kinetics of some rare earth carbonates, fluorocarbonates and fluorooxalates
Authors:
G. Gavrilova Siberian Department of Russian Academy os Sciences Institute of Inorganic Chemistry Novosibirsk

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M. Konyukhov Lensoviet Institute of Technology 198013, RF St. Petersburg

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V. Logvinenko Siberian Department of Russian Academy os Sciences Institute of Inorganic Chemistry Novosibirsk

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G. Sedova Lensoviet Institute of Technology 198013, RF St. Petersburg

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Pages:
889–897
Online Publication Date:
09 Jan 2007
Publication Date:
01 Apr 1994
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02547168
Keywords:
kinetics; rare earth carbonates; fluorocarbonates and fluorooxalates; thermal transformation
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Abstract  

The thermal transformations of Pr and La carbonates, La, Ce, Pr, Nd, Sm, Eu and Gd fluorocarbonates, and La, Nd, Dy and Ho fluorooxalates were investigated. A Derivatograph Q-1000 (MOM, Hungary) was used for thermal analysis. The kinetics of the processes was studied in a flow reactor. The activation energies and preexponential factors for dehydration and decarbonization were calculated. Samples of Pr fluorocarbonate, Ho fluorooxalate, and Pr and La carbonates were exposed to γ-irradiation (dose from 6.2·106 to 6.1·107 rad). The influence of the irradiation dose upon the kinetic parameters (Ea andA) of the processes was investigated.

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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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