Surface chemistry considerations of gangue dissolved species in the bastnaesite flotation system

Xu, Longhua; Wang, Zhoujie; Shu, Kaiqian; Wu, Houqin; Hu, Yuehua

doi:10.1016/j.fmre.2021.09.007

Cited by 10 publications

(4 citation statements)

References 46 publications

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“…and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines [27]. The guideline recommended by Andrews [28] for peer-reviewed journal identification was followed, and the keywords "flotation", "rare earth", and the names of 17 REEs [3] and 84 REMs [29] were used, as summarized in Table S1 [28].…”

Section: Review Methodologymentioning

confidence: 99%

“…REM deposits contain slightly soluble common associated gangue minerals (e.g., calcite, fluorite, barite, and dolomite) and highly soluble salt gangue minerals (e.g., strontianite, celestite) [40,41,66,70,107]. When in contact with water, these gangue minerals partly dissolve and release ionic species (e.g., Ca 2+ , Ba 2+ , Mg 2+ , Sr 2+ , CO 3 2− , SO 4 2− ) into the flotation pulp [3,33,38,69,70,125]. These ions in solution could form various complexes (e.g., CaOH + , BaOH + , MgOH + , SrOH + , Ca(OH) 2 , Ba(OH) 2 , Mg(OH) 2 , CaCO 3 , BaCO 3 , MgCO 3 , and BaSO 4 ) that adsorb and/or precipitate on the surface of REMs [40,41,69,79].…”

Section: Roles Of Dissolved Ions In Rare Earth Mineral Flotationmentioning

confidence: 99%

“…The following supporting information can be downloaded at: https: //www.mdpi.com/article/10.3390/app13148364/s1, Figure S1 S1: Lists of 17 REEs and 84 REMs used as searching keywords. ; Table S2: Summary of recent studies on REM flotation using other collectors [3,29,[31][32][33]50,[63][64][65][66]95,101,106,[116][117][118][119][120][121][122].…”

Section: Supplementary Materialsmentioning

confidence: 99%

“…Rare earth elements (REEs)-a group composed of 15 lanthanides, scandium, and yttrium-are essential in numerous modern technologies because of their unique magnetic, phosphorescent, and catalytic properties. The bulk of REEs produced worldwide are used as catalysts (75%), while the rest are consumed by various industries, including ceramics and glass manufacturing (6%), polishing agents (5%), metallurgical applications and alloys (4%), and others (e.g., computer memory, DVDs, rechargeable batteries, super magnets, mobile phones, LED lighting, superconductors, fluorescent materials, phosphate-binding agents, solar panels, magnetic resonance imaging (MRI) agents) (10%) [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

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Rare Earth Elements Recovery from Primary and Secondary Resources Using Flotation: A Systematic Review

et al. 2023

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Rare earth minerals (REMs) contain rare earth elements (REEs) that are important in modern technologies due to their unique magnetic, phosphorescent, and catalytic properties. However, REMs are not only non-renewable resources but also non-uniformly distributed on the Earth’s crust, so the processing of REE-bearing secondary resources via recycling is one potential route to ensure the long-term sustainability of REE supply. Flotation—a method that separates materials based on differences in their surface wettability—is a process applied for both mineral processing and recycling of REEs, especially when the particles are fine and/or a high-purity product is required. In this review, studies about rare earth flotation from 2012 to 2021 were systematically reviewed using the PRISMA guideline. It was found that most REM flotation research works focused on finding better collectors and depressants while, for recycling, studies on advanced flotation techniques like froth flotation, ion flotation, solvent sublation, electroflotation, and adsorbing colloid flotation with an emphasis on the recovery of dissolved REEs from aqueous solutions dominated.

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