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For this purpose, this paper analyzes two aspects of research progress in recent decades: the green separation of rare earth elements and aluminum from leaching liquor and …
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2.2.1 Occurrence. Rare earth minerals occur as fluorites, oxides, tantalates, carbonates, phosphates, sulfates, borates, silicates, etc. (Qi 2018).List of different rare earth …
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The application of centrifugal extractors made of fully anti-corrosion reinforced materials in rare earth extraction and separation not only achieves efficient separation of rare …
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Recently, high-entropy (HE) materials have attracted increasing interest in various fields due to their unique characteristics. Rare earth (RE) elements have a similar atomic radius and gradually occupied 4f orbitals, …
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REs and Al can be selectively separated from the rare earth solution via centrifugal extraction technology. When the Al 3+ concentration in the rare earth solution …
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Rare earth element-based sorbents have also gained considerable attention in recent years for P removal as they have high affinity to bind phosphate over a wide pH range …
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Rare earth elements (abbreviated as REEs), a group of chemically-similar and physically-similar metallic elements, are used as essential constituents in a wide range of …
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U.S. automotive leaders are warning that a severe shortage of Chinese-made rare-earth magnets – critical components used throughout modern vehicles – could force American …
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Purpose The use of rare earth elements (REEs) as tracers provides a high-precision method for quantitative determinations of soil particle movement in soil erosion …
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Rare earth elements are more than scientific curiosities—they're critical resources driving modern technology and economic innovation. Profitability in this market isn't just about …
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the crystal field Hamiltonian for rare-earth ions to describe the finite temperature magnetic properties of rare-earth-based magnetic materials [2]. Intuitively, this method performs better …
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The extraction separation of rare-earth elements (REEs) is one of the most complex technological processes. This is due to the formation of difficult-to-separate …
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In the case of rare earth elements, the crystalline field is generally small compared with the spin orbit coupling. ... shows that not only the confinement due to the centrifugal force …
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Rare earth elements (REEs) are widely used in energy materials, national defense, military industries, electronic devices, and other fields because of their excellent optical, electrical, magnetic, thermal, and other physiochemical …
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Synchysite and apatite are the main rare earth-bearing minerals with mineralisation being closely associated with strontianite and baryte. The mine was estimated to hold 18.14 …
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Synthesis of multielement R–T intermetallics, especially the RT 12 compound, is very challenging due to their complex crystal structure, desired phases formed in narrow …
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Based on the mineral evolutions of rare-earth phases and the migrations of rare earth in various phases, the separation experiments of the RE-rich phases were carried out …
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(DOI: 10.1134/S0040579520040028) The results of studies on the extraction separation of REE concentrate isolated from phosphogypsum into 75 vol % TBP in a diluent …
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China controls 92% of global rare earth element refining, creating a critical geopolitical and economic vulnerability for the United States. Major automakers and defense …
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Primary economical deposits of rare-earth elements (REEs) are exhausting all over the world, and it has become necessary to find new sources and methods for their extraction.
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The complexity of centrifugal chromatographic devices imposes restrictions on their scale, and limits the productivity of the separation processes. Technical limitations of the larger …
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The centrifugal energy within the different types of cyclones accelerates the size-based and/or density-based separation processes. Cyclones can be divided based on their mode of …
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With the rapid development of intelligent manufacturing, modern components are accelerating toward being light weight, miniaturized, and complex, which provides a broad …
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magnetic properties. Concomitantly, a centrifugal Jahn-Teller effect develops that expands the distribution of the magnetic ion and softens the rattling phonons. These effects are confronted …
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As Rare Earth Exchanges (REEx) has reported over the past 48 hours, industrial panic is erupting across Europe, India, and beyond. While U.S. media coverage remains …
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3.1. R 2 Fe 14 B systems. Because R 2 Fe 14 B systems can be synthesized for almost all rare-earth elements, we compare their magnetic properties with respect to the differences between …
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The application of P 507 extractant in centrifugal extraction has also been studied by Zhou et al. 86 and Chi et al. 82 In general, through short-process extraction and stripping …
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Rare earth elements have unique physicochemical properties that make them essential elements in many high-tech components. Bastnesite (La, Ce)FCO 3, monazite, (Ce, …
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Based on this technology, Meng et al. (2017) proposed an innovative way to recover valuable metals from waste printed circuit boards, which is a clean closed-loop process for …
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The production of neodymium-iron-boron (NdFeB) magnet scraps has been increasing, creating an urgent demand for the recovery of rare earths elements from these …
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The extraction separation of rare-earth elements (REEs) is one of the most complex technological pro-cesses. This is due to the formation of difficult-to-sep- ... ciency of the emulsions in the …
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The beneficiation of rare earth element (REE) minerals may include many different beneficiation unit operations, but the final process choice typically depends on the inherent …
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For example, application of a centrifugal field to a ternary regular solution can cause creation of three phases, even when there is no three-phase region under earth gravity. Thus, …
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The extraction of critical metals, such as rare earth elements (REEs), from dilute feedstocks like geothermal brine, mine tailings, and produced water is crucial for advancing …
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Rare earths are finding increasing use in communications—and display devices, renewable energy, medicine, and other practical applications that affect daily life. In this Review, we examine the past and present separation …
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