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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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Visible-light photocatalytic activity of rare-earth-metal-doped TiO2
Ho-TiO 2 achieved the highest photocatalytic activity under visible-light irradiation. Sub-bandgap states from the 4 f levels of the doped metal caused bandgap narrowing. …
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Rare Earth Magnets, Metal Detectors and Metal Separators
Sesotec Rare Earth Magnets, Metal Detectors and Metal Separators Sesotec is the leading manufacturer of metal inspection, separation, and sorting systems. Specializing in process security for plastic processing for over 30 years.
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Machine learning assisted screening of non-rare-earth elements …
Improved density of 〈 c + a 〉 dislocations is indispensable for enhancing the ductility of Mg alloys. More 〈 c + a 〉 dislocations can be activated by reducing the basal stacking fault energies (SFEs) through the addition of rare-earth (RE) elements, but they are rare and costly. Therefore, it is worthwhile to develop a screening criterion of RE elements free Mg …
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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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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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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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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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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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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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OK facility produces rare earth magnets
While Round Top still has several years of permitting and development before it will be able to deliver a domestic supply of the rare earths needed for high-performance permanent magnets, USA Rare Earth cut a deal to buy ultra-pure REEs produced at ReElement Technologies Corp.'s state-of-the-art refining facility in Indiana.. Now, USA Rare Earth has …
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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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Visible-Light Photocatalytic Activity of Rare-Earth-Metal-Doped …
Abstract. Modification with rare-earth (RE) metals has emerged as an important approach for enhancing the properties of titanium dioxide. Herein, the visible-light photocatalytic activity of RE-TiO2 (RE: Tm, Er, Nd, Dy, Lu, La, Ho, Pr, Tb, Sc, Ce, Yb, Sm, Gd, Y, or Eu) was investigated using a combination of computer simulations and experimental techniques.
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Rare earth metals see new medical uses
While the importance of rare earth metals is widely acknowledged in manufacturing sophisticated devices for use in space, defense, clean, green and consumer technologies, the increasingly innovative and effective roles …
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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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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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Overcoming Catch-22 for rare earth metals in green transition
Explores the paradox of using rare earth magnets in green technologies despite environmental impacts from extraction. Discusses the need for legislation and sustainable …
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Advancing Rare-Earth Separation by Machine Learning
A review. Rare earth metals are essential ingredients for the development of modern industry as well as designing and developing high technol. products used in our daily lives. Consequently, the worldwide demand of rare earth metals is rising quickly and predicted to surpass the supply by 40,000 tons annually.
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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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Forecasting rare earth stock prices with machine learning
Rare earth elements, also known as rare earth metals, encompass a group of 17 metallic elements present in the Earth's crust. This group includes the 15 elements ranging from 57 to 71 on the periodic table collectively referred to as lanthanides, in addition to scandium and yttrium (Henriques and Sadorsky, 2023).
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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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What are rare earth metals and why are they in demand?
(Reuters) – Rare earth metals are making headlines as demand rises for products from smartphones to wind turbines, and as governments seek secure supply. Here are some basic facts about them: WHAT ARE THEY?Rare earths are a group of 17 elements including 15 silvery-white metals called lanthanides, or lanthanoids, plus scandium and yttrium.
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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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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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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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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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Rare Earth Elements: Overview of Mining, Mineralogy, Uses
Rare earths are used in the renewable energy technologies such as wind turbines, batteries, catalysts and electric cars. Current mining, processing and sustainability aspects have been described in this paper. Rare earth availability is undergoing a temporary decline due mainly to quotas being imposed by the Chinese government on export and action taken against illegal …
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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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A rare earth metal company plans to open in Exeter. Their …
Emissions-free metal production. Rare earth element production is somewhat infamous for the danger it poses to the environment and to the health of people exposed.
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Critical rare earth metal adsorption onto expanded …
Unsupervised machine learning (ML) techniques are applied to the characterization of the adsorption of rare earth elements (REEs) by zeolites in continuous flow.
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