Effect of Flotation Time and Collector Dosage on Estonian Phosphorite Beneficiation

Kadriann Tamm; Zeinab Arab Zadeh; Rein Kuusik; Juha Kallas; Jason Yang; Kaia Tõnsuaadu; Andres Trikkel

doi:10.20944/preprints202012.0353.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 10 December 2020 / Approved: 14 December 2020 / Online: 14 December 2020 (15:56:13 CET)

Phosphorus is essential and non-substitutable chemical element required for the cellular processes of all living organisms. The main source of phosphorus in the biosphere is phosphate rock. With more than 700 Mt P2O5, Estonia holds the largest sedimentary phosphate rock deposits in European Union. Estonian phosphate rock is principally sandstone that holds abundant remains of phosphatic brachiopod shells and compared to other sedimentary rocks, is particularly outstanding by its remarkably low content of hazardous heavy metals such as Cd and saturated by valuable elements present in the rock such as rear earth elements (REEs).

Estonian phosphorite; beneficiation; reverse flotation; phosphate concentrates; phosphate recovery

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Effect of Flotation Time and Collector Dosage on Estonian Phosphorite Beneficiation

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