What are rare earth elements, and why are they important?

Rare earth elements are an essential part of many high-tech devices. The U.S. Geological Survey news release "Going Critical" explains: "Rare-earth elements (REE) are necessary components of more than 200 products across a wide range of applications, especially high-tech consumer products, such as cellular telephones, computer hard drives ...

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Map Shows Ukraine's Rare Earth Minerals That Putin Wants To …

A map shows the location of Ukraine's rare earth minerals within its annexed regions, which Russian President Vladimir Putin has offered to sell to President Donald Trump. Putin said on Monday he ...

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America's War Machine Runs on Rare-Earth Magnets.

T he American war machine depends on tiny bits of metal, some as small as dimes. Rare-earth magnets are needed for F-35 jet fighters, missile-guidance systems, Predator drones and nuclear submarines.

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Rare-earth Magnet Recycling

Rare Earth Magnet Recovery Machine for HDDs The electric motors in HDDs contain rare-earth magnets. These are called voice coil motors (VCMs). Fig. 2 shows the process used to separate and recover the rare-earth magnets. While development of an HDD dismantler(1) that removes VCMs from HDDs and demagnetizes them has already been completed,

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Deep-learning potential molecular dynamics simulations of the

In summary, a deep neural network potential model of rare-earth metal Sc was developed based on the machine learning method. The accuracy of the trained deep potential (DP) of Sc was validated by systematically comparing serials of physical properties with the DFT results and available experimental or theoretical data.

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Design of Rare Earth Free Permanent Magnet Generators

a Rare Earth Metal-Free Permanent Magnet Generator," Machines, vol. 2, issue 2, pp. 120–133, May 2014. II P. Eklund, S. Eriksson, "Air Gap Magnetic Flux Density Variations due to Manufacturing Tolerances in a Permanent Magnet Synchronous Generator," in the proceedings of XXII International Conference on

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Overcoming Catch-22 for rare earth metals in green transition

However, the mining and processing of rare earth metals required for these machines is energy-intensive and has significant environmental impacts. As a result, the increased use of rare earth permanent magnets to mitigate ecological concerns may lead to further environmental degradation. This paper presents a comprehensive literature review ...

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How rare earth elements make modern technology possible

The rare earths are the lanthanides — lutetium and all 14 elements between lanthanum and ytterbium across one row of the periodic table — plus scandium and yttrium, which tend to occur in the same ore deposits and have similar chemical properties to the lanthanides. These gray to silvery metals are often malleable wit…

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Research Status of Electrolytic Preparation of Rare Earth Metals …

China's rare earth reserves and consumption are the highest in the world. Rare earth metals and alloys play a pivotal role in the domains of permanent magnetic materials, hydrogen storage materials, luminescent materials, abrasive materials, etc. The molten salt electrolysis process is the most widely used method for producing light rare earth metals and …

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Rare Earth Metal Ion-Associates in Ln3+—CO32−—H2O System

This study focused on the nature of rare earth metal complex compounds that can form during the carbonate–alkaline processing of industrial waste materials, such as phosphogypsum and red mud, at 70–100 °C and 1–10 atm. Experimental findings revealed that the dissolution of synthetic carbonates of rare earth elements (REEs) in a concentrated carbonate-ion medium (3 mol/L) …

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Artificial intelligence paves the way to discovering new rare-earth

Artificial intelligence advances how scientists explore materials. Researchers trained a machine-learning (ML) model to assess the stability of rare-earth compounds.

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Toward Less Rare-Earth Permanent Magnet in Electric Machines…

Many electric traction drive systems (ETDSs) are driven by electric motors primarily composed of high-energy rare-earth (RE) permanent magnets (PMs), such as neodymium-iron-boron (NdFeB) and samarium-cobalt (SmCo). Given the high cost of RE materials, there is a great interest among various industry sectors in searching for breakthrough technologies that reduce the …

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Advancing Rare-Earth (4f) and Actinide (5f) Separation through Machine

Identifying improved and sustainable alternatives to "classic" separation techniques is an active research field due to its potential widespread impact in fundamental and applied chemistry. As basic purification methodologies, like liquid–liquid extraction, undergo continuous refinement by chemists and engineers, identifying new conditions that outperform existing …

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Composite Materials For Adsorption of Rare Earth Metal Ions

Rare earth elements (REEs) are vital across numerous sectors, from nuclear and architecture to electronics and medicine, due to their unique properties. Meeting the growing demand for REEs necessitates innovative recovery methods from waste and recycling. This review explores the adsorption of REEs using polymer composites, including biopolymers, …

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Rare earth metals see new medical uses

Thulium, the rarest of REE, is a soft, silver-like metal that is used in portable X-rays machines and in treating health problems with a thulium laser. Because the metal is not economical to mine, it is very expensive and thus …

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Phoenix Tailings Massachusetts Facility the First Rare Earth Metal

Phoenix Tailings zero-emissions manufacturing equipment was designed to be a self-enclosed unit, ensuring that the rare earth metals can be produced in any warehouse with enough space for the machine. Producing rare earth metals in a carbon-neutral and zero-emission manner protects public health, worker safety, and our environment.

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Rare Earths

Rare earth magnets are a key component of magnetic resonance imaging (MRI); an average MRI machine contains 700kg of rare earth metals. Rare earths are also used in diagnosis and treatment of ailments including some cancers and …

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Rare Earth: An Invaluable Element for Malaysia

REEs commonly categorised as light rare earth metals and heavy rare earth metals, have gained immense popularity for its usage in various segments as illustrated below. In a nutshell, REE's demand boom is attributed to emerging technologies and advancement in the medical, automotive, electronics, healthcare and clean sectors.

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LIBS Detection of Rare‐Earth Elements and Comparison with …

This chapter discusses rare-earth (RE) elements, their importance, and laser-induced breakdown spectroscopy (LIBS) analysis. It provides some of the important results of LIBS detection of RE elements in geological sites, glasses, phosphor, etc. To detect RE elements in nuclear waste, mostly inductively coupled plasma (ICP) technique is used ...

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U.S. Begins Forging Rare Earth Supply Chain

Demand signals for rare earths are projected to rise as the world electrifies with machines that require highly specialized rare earth magnets. According to a report by independent research firm Adamas Intelligence, the global demand for rare earth oxides is forecasted to triple from $15 billion in 2022 to $46 billion in 2035.

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Advancing Rare-Earth Separation by Machine Learning

The present paper reviews the methods used for the recovery of rare earth metals from primary as well as secondary resources, with special attention to the hydrometallurgical techniques, consisting of leaching with …

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U.S. Begins Forging Rare Earth Supply Chain

Demand signals for rare earths are projected to rise as the world electrifies with machines that require highly specialized rare earth magnets. According to a report by independent research firm Adamas Intelligence, the …

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Factbox-What Are Russia's Rare Earth Metals Ambitions?

Russia's only producer of finished rare earth metals, Solikamsk Magnesium Plant, was taken from its former owners in 2022 over illegal privatisation allegations and handed over to state ...

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Other automakers follow Tesla into rare earth metal-free

Currently, the processing and mining of the 17 minerals known as rare earth metals are dominated by China, and many have sounded the alarm on relying too heavily on the country — especially ...

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Intelligent leaching rare earth elements from waste fluorescent

Rare earth elements (REEs), known as "the vitamins of industry", are widely applied in various fields such as electronic information, national defense, metallurgical machinery, petrochemical industry, and so on (1, 2).With the development of information technology and industry, the demand for REEs is sharply increasing.

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Rare-earth Nanoparticles in Biomedical Imaging (Magnetic …

Rare-earth Nanoparticles Used in Biomedical Imaging. Rare-earth nanoparticles are ceramic nanoparticles made by oxides, sulfides, halides or oxysalts that contain lanthanide group ions (usually with +3 charged ions) [1]. Due to their 4f or 4f-5d orbital electrons, rare-earth nanoparticles show unique optical properties.

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Drawer Magnets with rare earth cartridges used in Injection …

Mounted on the throat of the molding machine, tramp metal is stopped from flowing into the machine by powerful rare earth magnets. Drawer magnets are available in painted and stainless steel in different styles to suit specific application needs. Our most popular sized drawer magnets with side gates are stocked items!

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Recovering rare earth metals from waste permanent magnets

Rare earth metal recovery performance from fibrous materials / Effect of pH on the rare earth recovery performance of fibers for (a) Nd 3+ and (b) Dy 3+ ions. The initial concentration and adsorbent dosage for each rare earth metal ion were 1,000 mg/L and 0.5 g/L, and the reaction time was 24 hours without any pH adjustment.

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Rare-Earth Metal-Based Materials for Hydrogen Storage: …

Rare-earth-metal-based materials have emerged as frontrunners in the quest for high-performance hydrogen storage solutions, offering a paradigm shift in clean energy technologies. This comprehensive review delves into the cutting-edge advancements, challenges, and future prospects of these materials, providing a roadmap for their development and …

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America's War Machine Runs on Rare-Earth Magnets. China …

T he American war machine depends on tiny bits of metal, some as small as dimes. Rare-earth magnets are needed for F-35 jet fighters, missile-guidance systems, Predator drones and nuclear submarines.

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