Charge-induced dry concentration of lithium-containing components in fine slag powders

点击翻译按钮获取中文摘要

Triboelectric separation is an inexpensive and environmentally friendly method to separate non-conductive fine powders, which is widely employed in mineral processing and pharmaceutical applications. In the present project, it should be extended in modified form to the sorting of fine artificial slag powders. Besides the large number of influencing parameters on the triboelectric charging, the strongly varying properties of the slag powders, which depend on composition, cooling kinetics and comminution process, makes it a challenging task. Therefore, a flexible process is intended, which is tunable to the properties of the powder of interest by controlling the contact potential. Here, the lithium-containing fine slag components are in the focus, however, the flexibility of the process allows for other target materials.