The Experimental Study of Innovative Methods Regarding the Removal of Sm(III)

Lobacheva, O. L.; Dzhevaga, N. V.

doi:10.3390/app11167726

Cited by 6 publications

(5 citation statements)

References 30 publications

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“…The experimental study was carried out using a laboratory flotation machine FMP-L1 manufactured by Vektis Minerals (Russia) under following conditions: a volume of flotation capacity of 0.5 L, a mass of the suspension of ore of 50 ± 0.01 g, 90% grain size less than 183 μm, the speed of the impeller of 1000 rpm with an air flow of 3.8 m 3 /min, and stirring the suspension for 1 min. Flotation was carried out for 6 min. − The float and sink products were filtered, washed, dried, and weighed. Equation was used to calculate the extraction degree where m 0 is the mass of the initial sample of ore and m 1 is the mass of the washed and dried foam product.…”

Section: Methodsmentioning

confidence: 99%

Interaction Features of Sodium Oleate and Oxyethylated Phosphoric Acid Esters with the Apatite Surface

et al. 2022

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Apatite ores are the most important phosphate materials used for the agricultural and livestock chemical production. With the global demand for phosphorous compounds, apatite and other phosphorus-bearing ores are being depleted. The main method of apatite ore enrichment at the moment is the flotation process, the efficiency of which depends on complex heterogeneous processes occurring at the boundary of three phases (“liquid–gas”, “solid–liquid”, and “solid–gas”). Significant influence on the process have the flotation modes and composition of the reagent mixture, which provide a synergistic effect. The purpose of this work was to investigate the reasons for the synergism of surfactants used in apatite ore flotation with fatty acid-based collectors. The object of the study is a monomineral fraction of apatite, separated from the apatite-nepheline ore of Khibiny deposits. In the course of the work, it was found that the mixture of sodium oleate and phospholane PE65 has a synergistic effect on the mineral surface of apatite during foam flotation. The ratio of reagents was determined at which the maximum synergistic effect was observed.

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Section: Methodsmentioning

confidence: 99%

Interaction Features of Sodium Oleate and Oxyethylated Phosphoric Acid Esters with the Apatite Surface

et al. 2022

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“…Similar to ion flotation, NaDDS is frequently used as the surfactant in solvent sublation. Several authors have obtained 99% separation efficiency using this technique at pH 7-8 [138,139,144,145].…”

Section: Solvent Sublationmentioning

confidence: 98%

“…However, the majority of ion flotation studies used sodium dodecyl sulfate (NaDDS) as the surfactant (Table 4). Previous studies have shown that this technique could recover low-concentration REEs (10 -6 to 10 -3 M) with efficiencies of 57-98% [133][134][135][136][137][138][139][140]. Aside from NaDDS, other surfactants like monorhamnolipid [131,140], AKYPO RO 90 VG [141], and cetylpyridinium chloride (CPC) [142] have also been used.…”

Section: Ion Flotationmentioning

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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“…The need to increase the content of useful components in rougher flotation is determined by a relationship between the content of the recovered component in the feedstock, its extraction and quality of the concentrate. In practice, this is resolved by the structure of the separation cascade [11][12][13] which is commonly arranged in such a way [14][15][16], that the necessary pulp beneficiation is achieved by rerecycling the middlings. In the canonical circuit [17][18][19], tailings of primary cleaning and recleaner flotation concentrate [20][21][22] are recycled to rougher flotation, which leads to an increasing content of recoverable mineral [23,24] at the expense of its difficult-to-float (persistent) forms.…”

Section: Ui K T T Ui Kt Ktmentioning

confidence: 99%

Determination of rational steam consumption in steam-air mixture flotation of apatite-nepheline ores

Evdokimov

Gerasimenko

2022

PMI

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Relevance of the study is determined by the decisions taken to increase the production volume of certain commercial products from mineral raw materials. The scale, impact and consequences of the projects on developing the resource-saving technologies for beneficiation of mineral raw materials are socially significant, and the economic growth of mining production complies with the sustainable development goals. The aim of the study is to develop the flotation circuit and mode that improve the technological performance of beneficiation of apatite-nepheline ores of the Khibiny Massif in the Kola Peninsula. The scientific idea of the work is to develop the flotation circuit, the movement of beneficiation products in which ensures a major increase in the content of the recovered component in the rougher flotation procedure with a simultaneous increase in dressability of the material. The above condition is met when mixing the feedstock with rough concentrate. Recovery of the valuable component from the resulting mixture is accomplished in a mode differing from the known ones in that the heat of steam condensation is used to increase water temperature in the interphase film between the particle and the bubble. For pulp aeration during flotation, a mixture of air and hot steam is used as the gas phase. A high recovery of the valuable component in ore flotation according to the developed circuit and mode is facilitated by increasing water temperature in wetting films due to the steam condensation heat. A high selectivity of flotation with a steam-air mixture can be explained using the concepts of a phonon component of disjoining pressure, the value and sign of which are associated with a difference in the dynamic structure of liquid in the wetting film and bulk liquid.

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The Experimental Study of Innovative Methods Regarding the Removal of Sm(III)

Cited by 6 publications

References 30 publications

Interaction Features of Sodium Oleate and Oxyethylated Phosphoric Acid Esters with the Apatite Surface

Interaction Features of Sodium Oleate and Oxyethylated Phosphoric Acid Esters with the Apatite Surface

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

Determination of rational steam consumption in steam-air mixture flotation of apatite-nepheline ores

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