钪
吸附
氯化物
钛
离子交换
化学
离子交换树脂
金属
冶金
无机化学
材料科学
化学工程
离子
有机化学
工程类
作者
Eleni Mikeli,Danai Marinos,Aikaterini Toli,Anastasia Pilichou,Efthymios Balomenos,Dimitrios Panias
出处
期刊:Metals
[Multidisciplinary Digital Publishing Institute]
日期:2022-05-18
卷期号:12 (5): 864-864
被引量:8
摘要
Scandium metal has generated a lot of interest during the past years. This is due to the various crucial applications it has found ground in and the lack of production in countries outside China and Russia. Apart from rare earth ores, scandium is present in a variety of wastes and by-products originating from metallurgical processes and is not currently being sufficiently valorised. One of these processes is the production of titanium dioxide, which leaves an acidic iron chloride solution with a considerably high concentration of scandium (10–140 ppm) and is currently sold as a by-product. This research aims to recover scandium without affecting the solution greatly so that it can still be resold as a by-product after the treatment. To achieve this, two commercial ion-exchange resins, VP OC 1026 and TP 260, are used in the column setup. Their breakthrough curves are plotted with mathematical modelling and compared. Results indicate that VP OC 1026 resin is the most promising for Sc extraction with a column capacity of 1.46 mg/mL, but Zr, Ti, and V coextract have high capacities, while Fe does not interfere with the adsorption.
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