Authors:
XiuYan Wang The School of Chemical and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China

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JieMin Liu The School of Chemical and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China

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QiShan Yang The School of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology, Baotou 014110, China

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Jian Du The School of Chemical and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China

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FengE Wang General Research Institute for Non-ferrous Metals, Beijing 100088, China

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Wu Tao The School of Chemical and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China

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Abstract

The decomposition reaction process of waste rare earth (RE) polishing powder was monitored in real time by the thermogravimetry–differential thermal analysis (TG–DTA) and Fourier transform infrared spectroscopy (FTIR). The results showed that the reaction was divided into two stages, and the thermal weight losses got to stable when the temperature was more than 400 °C. The releasing gas mainly contained H2O and SiF4, and the reaction kinetics during decomposition process was studied by the methods of Freeman-Carroll and Kissinger.

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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)