Vo Van Mai, Anh Van Thi Bui, Toan Ta, Phuong Thi Tuyet Nguyen
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引用次数: 0
Abstract
This paper deals the effects of some factors on the fabrication process of high purity α-Al2O3 from Tan Rai Al(OH)3. The obtained results of surface morphology (SEM), crystal structure (XRD), composition (EDX) of the original Al(OH)3 and Al2O3 show that Al(OH)3 washed with CH3COOH 2N is best at 80oC, efficient Dissolution reached the highest when using 25% HCl, Al2O3 calcined at 1400oC for 2 hours. The obtained Al2O3 has the structure α-Al2O3, the highpurity.
研究了几种因素对Tan Rai Al(OH)3制备高纯α-Al2O3工艺的影响。对原Al(OH)3和Al2O3的表面形貌(SEM)、晶体结构(XRD)和组成(EDX)进行了分析，结果表明:用CH3COOH 2N水洗Al(OH)3在80℃时效果最好，用25%的HCl、Al2O3在1400oC下煅烧2 h时有效溶解达到最高。所得Al2O3具有α-Al2O3结构，纯度高。
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