The effect of calcium ions on the flotation behavior of fluorapatite

The flotation behavior of apatite, a main mineral source of phosphorus, is strongly affected by the dissolved ionic species from gangue minerals. In this study, the effect of calcium ions on the fluorapatite flotation using the extracted sodium alginate E.SA depressant was investigated through micro...

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Bibliographic Details
Published in:Mineral processing and extractive metallurgy review 2024-04, Vol.45 (3), p.173-182
Main Authors: Derqaoui, Mohammed, Aarab, Imane, Abidi, Abdelmoughit, Yaacoubi, Abdelrani, El Amari, Khalid, Etahiri, Abderahman, Baçaoui, Abdelaziz
Format: Article
Language:English
Subjects:
Adsorption
Alginic acid
Apatite
Calcium
Calcium alginate
Calcium ions
depressant
extracted alginate
Flotation
Flotation separation
Fluorapatite
Gangue
Ions
Microflotation
Sodium alginate
Surface chemistry
Zeta potential
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Summary:The flotation behavior of apatite, a main mineral source of phosphorus, is strongly affected by the dissolved ionic species from gangue minerals. In this study, the effect of calcium ions on the fluorapatite flotation using the extracted sodium alginate E.SA depressant was investigated through microflotation tests, adsorption experiments, zeta potential measurements, and FTIR analyses. Although the amount of NaOL collector adsorbed on fluorapatite increased with increasing calcium concentrations, microflotation results reveal that adding calcium ions could deteriorate the fluorapatite recovery. More significant depression of fluorapatite could be achieved when Ca 2+ and E.SA co-existed in the system. Zeta potential measurements and FTIR analyses showed that the addition of Ca 2+ hardly affected the adsorption of E.SA onto fluorapatite surface, which can be due to the formation and precipitation of calcium alginate. In contrast, NaOL remained weakly adsorbed on the fluorapatite surface even the presence of Ca 2+ and E.SA.
ISSN:0882-7508
1547-7401
DOI:10.1080/08827508.2022.2132944