1. A review of characterization techniques and processing methods for lithium extraction
- Author
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Abaka-Wood, GB, Acquah, G, Owusu, CK, Addai-Mensah, J, and 7th UMaT Biennial International Mining and Minerals Conference Online 30 July - 1 August 2022
- Subjects
green energy ,lithium ,QEMSC AN ,process mineralogy ,critical minerals ,lithium ion batteries - Abstract
Recently, the flotation of major rare earth elements (REE) minerals including bastnasite, monazite, and xenotime has been attracting high level of attention. Anionic collectors such as oleates and hydroxamates have been widely used in the flotation of valuable REE minerals. One of the key gangue minerals in REE deposits is kaolinite. Although there has already been previous research investigating kaolinite flotation from bauxite, there is limited data in the literature focused on flotation of REE minerals from kaolinite rich deposits. Since minerals in different ores may demonstrate differing flotation response, it is imperative to investigate their respective flotation behaviours. This work presents a fundamental study involving zeta potential and microflotation experiments with pure samples of monazite and kaolinite using sodium oleate as a collector. In this study, the floatability of monazite is high at pH 5–9, where kaolinite had comparatively lower flotation response. Complementary zeta potential measurements confirmed that sodium oleate interacts with REE ions on monazite surface resulting in the excellent flotation response, whereas minimal interaction was observed for kaolinite, hence the poor performance. Refereed/Peer-reviewed
- Published
- 2022