Faculty of Industrial Chemistry and Environmental Engineering, Polytechnica University of Timişoara, Victoriei Square, no. 2, 300006 Timisoara, Romania.
Renewable Energy Research Institute-ICER, Polytechnica University of Timişoara, Gavril Musicescu Street, no. 138, 300774 Timisoara, Romania.
Int J Mol Sci. 2022 Sep 4;23(17):10142. doi: 10.3390/ijms231710142.
In this paper, we studied the scandium adsorption from aqueous solutions on the surface of low-temperature-activated alumina products (GDAH). The GDAH samples are industrially manufactured, coming from the Bayer production cycle of the Sierra Leone bauxite as aluminium hydroxide, and further, by drying, milling, classifying and thermally treating up to dehydroxilated alumina products at low temperature. All experiments related to hydroxide aluminium activation were conducted at temperature values of 260, 300 and 400 °C on samples having the following particle sizes: <10 µm, 20 µm, <45 µm and <150 µm, respectively. The low-temperature-activated alumina products were characterised, and the results were published in our previous papers. In this paper, we studied the scandium adsorption process on the above materials and related thermodynamic and kinetic studies.
本文研究了低温活化氧化铝产品（GDAH）表面从水溶液中吸附钪的情况。GDAH 样品是工业制造的，来自塞拉利昂铝土矿的拜耳生产周期，作为氢氧化铝，然后通过干燥、研磨、分类和热处理，在低温下制成脱羟基氧化铝产品。与氢氧化铝活化有关的所有实验均在 260、300 和 400°C 的温度下进行，样品的粒度分别为：<10 µm、20 µm、<45 µm 和 <150 µm。低温活化氧化铝产品进行了表征，结果发表在我们之前的论文中。在本文中，我们研究了上述材料上的钪吸附过程以及相关的热力学和动力学研究。
