NDLI: Effect of Flotation Time and Collector Dosage on Estonian Phosphorite Beneficiation

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Effect of Flotation Time and Collector Dosage on Estonian Phosphorite Beneficiation

Content Provider	MDPI
Author	Kaia, Tõnsuaadu Tamm, Kadriann Zadeh, Zeinab Arab Kuusik, Rein Kallas, Juha Yang, Jason Trikkel, Andres
Copyright Year	2021
Description	Phosphorus is an essential and non-substitutable element for the cellular processes of all living organisms. The main source of phosphorus in the biosphere is phosphate rock. With more than 700 Mt phosphate rock, Estonia holds the largest sedimentary phosphate rock deposits in the European Union. Estonian phosphate rock is particularly outstanding due to its remarkably low content of hazardous heavy metals such as Cadmium (2O5 that can be added to the final product. Moreover, it was found that, with the lower dosage of the collector, the extended flotation time does not influence the phosphate grade and a high amount of quartz remains in the concentrates. It was also shown that, by raising the collector dosage and setting the flotation time, an adequate grade (>32 wt% P2O5) and recovery (up to 98%) can be gained. The results showed that Estonian phosphate rock can be beneficiated to produce a high-quality concentrate at high recovery levels by modifying the main flotation parameters depending on the properties of the ore.
Starting Page	114
e-ISSN	2075163X
DOI	10.3390/min11020114
Journal	Minerals
Issue Number	2
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-01-24
Access Restriction	Open
Subject Keyword	Minerals Water Science and Technology Estonian Phosphorite Beneficiation Reverse Flotation Phosphate Concentrates Phosphate Recovery
Content Type	Text
Resource Type	Article

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