Decomposition process and kinetics of waste rare earth polishing powder TG-DTA-FTIR studies

被引：12
|
作者：
Wang, XiuYan [1 ]
Liu, JieMin [1 ]
Yang, QiShan [2 ]
Du, Jian [1 ]
Wang, FengE [3 ]
Tao, Wu [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China
[2] Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014110, Peoples R China
[3] Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2012年 / 109卷 / 01期
关键词：
Waste RE polishing powder; Thermogravimetry-differential thermal analysis; Fourier transform infrared spectroscopy; Decomposing reaction kinetics; ACID;
D O I：
10.1007/s10973-011-1500-2
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
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 degrees 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.
引用
收藏
页码：419 / 424
页数：6
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