Rare-earth element | Uses, Properties, & Facts | Britannica
rare-earth element, any member of the group of chemical elements consisting of three elements in Group 3 (scandium [Sc], yttrium [Y], and lanthanum [La]) and the first extended row of elements below the main body of the periodic table (cerium [Ce] through lutetium [Lu]). The elements cerium through lutetium are called the lanthanides, but …Web
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Pathways for greening the supply of rare earth elements in China
In this study, we focus on three processes that are most commonly used to produce rare earth metals. Light rare earths (La, Ce, Nd, Pr) make up over 90% of those produced in China, the majority of ...Web
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Rare earth elements: A review of applications
Rare earth elements (REEs) are essential for many modern technologies and industries, but they also pose significant environmental challenges. This article provides a comprehensive overview of the occurrence, exploration, analysis, recycling, and impact of REEs, as well as their applications in various fields. The article also compares and …Web
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[Blog #7] Environmental Impacts of Rare Earth Mining
Rare earth elements (REEs) refer to the group of 15 lanthanides, and are usually categorised into either of the two groups: light rare earth minerals (LREEs) and heavy rare earth minerals (HREEs), based on their atomic weight as shown in the table below: ... can result in radioactive pollution due to the introduction and diffusion of ...Web
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Effects of the accumulation of the rare earth elements on soil
The accumulation of rare earth elements (REEs) in soil has occurred due to the pollution caused by the exploitation of rare earth resources and the wide rare earth fertilizers in agriculture. The accumulation of REEs has a toxic effect on the soil macrofauna community. 12 study samples were collected near a mine tailings dam with a …Web
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Characteristics and Evaluation of Soil Rare Earth Element Pollution …
The Bayan Obo deposit is the largest light rare earth ore deposit in the world, which releases rare earth elements (REEs) to the surrounding environment through long-term mining processes.Web
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Environmental impacts of rare earth production | MRS Bulletin
Rare earth elements (REEs) are important raw materials for green technologies. However, REE mining and production uses techniques that are often not …Web
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Environmental Cost of Refineries
Based on the production of 103,900 tons of rare earth oxide in 2005, it is estimated that approximately 20,000-25,000 tons of waste water are produced every year, though with new regulations, this number may be decreasing. To separate the ore of one ton of rare earth concentrate that has a rare earth element content of 92 percent rare earth ...Web
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Environmental impacts of rare earth production | MRS Bulletin
Rare earth elements (REEs) are important raw materials for green technologies. However, REE mining and production uses techniques that are often not environmentally sustainable. Life cycle assessment (LCA) is a well-recognized method for evaluating the environmental impacts of products and technologies. This article provides …Web
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The potential environmental risks associated with the …
The development of rare earth element (REE) production in Canada could generate significant economic benefits but also poses serious potential risks to the environment. Rare earth elements have been widely used in modern life and industries and are even indispensable in some crucial advanced technologies (e.g., permanent …Web
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Rare earth mining may be key to our renewable …
The release of heavy metals and other pollutants during mining led to "the destruction of vegetation and pollution of surface water, groundwater and farmland.". The "excessive rare earth ...Web
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What Are Rare Earth Minerals, Why Do EVs Need …
Mining rare earth elements requires extracting substantial amounts of rare earth ores spread across a wide area instead of concentrated in one location. The result is the production of large …Web
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Social and Environmental Impact of the Rare Earth …
The use of rare earth elements in various technologies continues to grow despite some alternatives being found for particular uses. Given a history of ecological concerns about pollution from rare earth …Web
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The Guardian view on rare earths: mining them can't cost the Earth
R are earth elements may be in short supply but they are not rare. Even the rarest, thulium, is more than 100 times more common than gold. But only a few countries – such as the US, Australia ...Web
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Rare earth elements and old mines spell trouble for Western U.S.
Rare earth elements are finding their way into Colorado water supplies, driven by changes in climate, finds a new study published in the journal Environmental Science & Technology.Web
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Arctic Competition, Climate Migration, and Rare Earths: Strategic
The Dirty Cost of Clean Energy. In The Rare Metals War, author Guillaume Pitron notes that dirty metals are necessary for a cleaner world.[42] On the surface, Pitron's assertion seems to be hyperbole, but in reality rare earth element extraction and refinement add significantly to greenhouse gas emissions and ground pollution.Web
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How environmental regulation affects China's rare earth export?
China's rare earth export trade has developed so rapidly since 1990s that China has gradually occupied a leading position in the international market. However, this fast development was proceeding at the cost of the rare earth energy consumption and environmental devastation. Now China begins to attach great importance to …Web
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History and Future of Rare Earth Elements
The rare earths are 17 metallic elements, located in the middle of the periodic table (atomic numbers 21, 39, and 57–71). These metals have unusual fluorescent, conductive, and magnetic properties—which make them very useful when alloyed, or mixed, in small quantities with more common metals such as iron. Geologically speaking, the rare ...Web
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Rare Earth Elements in the Soil Environment | Current Pollution …
Rare earth elements (REE) are a homogenous group of 17 chemical elements in the periodic table that are key to many modern industries including …Web
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Rare Earths: The Hidden Cost to Their Magic
Lisa: The rare earth elements are mostly in group six: they're generally silver, silvery-white, or gray metals. They're shiny until they hit the air, when they tarnish. ... Alexis: Refining the rare earths also creates …Web
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Climate-positive, high-tech metals are polluting Earth, but …
Yet these positive advances rely on a small number of "technology-critical elements," or TCEs, rare materials whose mining, production and disposal are linked to …Web
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The Role of Microorganisms in Mobilization and Phytoextraction of Rare
Rare earth (RE) elements are a group of 17 chemical elements including the 15 lanthanides plus Yttrium and Scandium. RE have been identified as critical elements due to their special properties (e.g., catalytic, metallurgical, nuclear, electrical, magnetic, and luminescent) and various applications in many modern technologies, environment and …Web
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Protecting the environment and public health from rare …
Protecting the environment and public health from rare earth element (REE) mining as well as emerging pollutants is urgently required to achieve sustainable development. This study mapped Earth's hidden …Web
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Myanmar's environment hit by rare earth mining boom
Rare earth elements are essential to today's modern economy due to their high magnetic properties that are needed for producing high-tech devices. ... The Chinese government introduced its first industrial standards for air and water pollution in the rare earth industry in 2011, while launching crackdowns on illegal mining and selling ...Web
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Rare Earth Mine Could Impact Montana Trout Rivers
Rare earth minerals are used in electric cars and other forms of alternative energy technology, but mining for these materials has been shown to create toxic pollution—including radioactive residue.Web
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Rare earth elements: A review of applications
Rare earth elements (REE) include the lanthanide series elements (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) plus Sc and Y. Currently these …Web
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TENORM: Rare Earths Mining Wastes | US EPA
Rare earth minerals are processed primarily from ores and minerals that also naturally contain uranium and thorium. Processing rare earth minerals involves the separation and removal of uranium and thorium, which results in TENORM wastes. For detailed information and publications about rare earths, including statistics about …Web
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A once-shuttered California mine is trying to transform the rare-earth
Since then, MP Materials has been steadily ramping up rare-earth production at Mountain Pass, generating 14,000 tons of rare-earth oxides in 2018, and 28,000 tons the following year. Last year ...Web
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New, environmentally friendly method to extract and separate rare earth
Low-grade sources of rare earth elements (REE), for example from industrial waste, typically contain many rare earth elements and other metals mixed together. The new method relies on a protein called lanmodulin (LanM) that first binds to all the rare earth elements in the source. Then other metals are drained and removed.Web
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