Thermal characterization of bauxite samples
Thermal characterization of bauxite samples
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DOI：
10.1007/s10973-005-7126-5
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发表时间：
2006-01-01
影响因子：
4.4
通讯作者：
Balek, V
中科院分区：
文献类型：
--
作者：
Laskou, M;Margomenou-Leonidopoulou, G;Balek, V
采用辐射热分析（ETA）、差热分析（DTA）和热重/热重分析（TG/DTG），研究了希腊洛克里达地区Atalandi地区铝土矿下层3个特征样品在20 ~ 1250℃温度范围内的热行为。测定了样品的主要元素和化学成分。并用x射线衍射对其矿物组成进行了表征。样品主要由一水硬铝石、薄水铝石、三水铝石、高岭石、赤铁矿、针铁矿、锐钛矿、茶辉石、绿泥石和稀土矿物组成。观察到化学和矿物组成的差异。
Thermal behavior of three characteristic samples from the lower bauxite horizon from locality of Atalandi, Locrida area (Greece) was investigated in the temperature range 20-1250 degrees C by means of emanation thermal analysis (ETA) as well as simultaneous DTA and TG/DTG. The major elements of the samples and the chemical composition of the samples were determined. Moreover, X-ray diffraction was used to characterize the mineralogical composition. It was found that the samples are mainly composed of diaspore, boehmite, gibbsite, kaolinite, hematite, goethite, anatase, chamosite, chloritoid and REE minerals. Differences in chemical and mineralogical composition were observed.