:Rare Earth MetalsRare Earth Mining in ChinaMining Industry · 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
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· Rare earth elements (REE) are a homogenous group of 17 chemical elements in the periodic table that are key to many modern industries including chemicals, consumer electronics, clean energy, transportation, health care, aviation, and defense. Moreover, in recent years, they have been used in agriculture. One of the consequences
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:Pascale Combes Motel, Bocar Samba Ba, Sonia SchwartzPublish Year:2020Rare-earth elements occur in nature in combination with phosphate ( monazite ), carbonate-fluoride ( bastnäsite ), and oxygen anions. In their oxides, most rare-earth elements only have a valence of 3 and form
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· In this study, we used life cycle assessment to quantify environmental impacts for producing 1 kilogram (kg) of 15 rare earth elements from each major production pathway. The scope of assessment included the largest rare earth oxide (REO) production chain in Bayan Obo, as well as lesser known production chains for bastnäsite in Sichuan
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· With river pollution more in the news than ever before, and sewage now a hot topic, Helen Czerski and Tom Heap investigate how we can restore the health of our rivers. They talk to the Rivers
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· According to China Daily, issued in early January, China's rare earth mining companies will be ordered to within 2-3 years comply with new environmental pollution standards. Specifically,
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:Rare Earth MetalsAuthor:V. BalaramPublish Year:2019 · This chapter uses qualitative, historical, environmental, and epidemiological research from a range of sectors to outline the basis of comparison between ex ante and
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· Myanmar alone accounted for about 70% of China’s rare earth import value. According to Resource Trade, Myanmar earned about US$623 million in total from exporting rare earth elements to China from 2011 to 2020. The annual export value increased from $88,500 to $388 million in the same period of time.
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By Mike Ives • January 28, 2013. In November, the first shipment of raw “rare earth” minerals arrived at an $800 million processing plant on Malaysia’s east coast near the home of Tan Bun Teet. The plant, run by Australia’s Lynas Corporation, has since begun refining the rare earth metals, essential components in wind turbines, hybrid
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· Urban trees are able to retain pollutants from the environment and can be used as bioindicators also for the rare-earth metal pollution. This paper aimed to assess the bioaccumulation of some rare
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· Given the high impact of traditional mining, the recovery of rare earth elements (REEs) from hazardous waste materials could become an option for the future in accordance with the principles of the circular economy. In this work, the technical feasibility of REEs recovery from metal mine tailings has been explored using electrokinetic
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· Teng, Y. et al. Risk assessment, prevention, control and remediation of ground water pollution in rare earth tailings ponds 1 (Science press, Beijing, 2016). Google Scholar Panichev, A. M. et al
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· Rare earth elements (REEs) are increasingly critical to the high-technology and low-carbon economy. With a shift to sustainable socioeconomic development that aims to be less fossil fuel dependent, global demand for REEs continues to rise, despite their uncertain supply chain and high environmental impact of production.
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· In this study, we used life cycle assessment to quantify environmental impacts for producing 1 kilogram (kg) of 15 rare earth elements from each major production pathway. The scope of
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China supplied 80% of the rare earths imported by the United States from 2014 to 2017.” (“U.S. Dependence On China’s Rare Earth: Trade War Vulnerability,” Reuters, 6/27/19) “The United States imported $160 million of rare earth compounds and metals in 2018, up nearly 17% from 2017.” “The United States imported $160 million of rare
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· Rare earth elements (REEs) are an emerging pollutant whose increasing use in various technological applications causes increasing risk of environmental contamination. Electronic waste (E-waste) could be one major source of REE pollution, as E-waste typically contains elevated REE concentrations and is often handled in unsafe
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· Study on membrane pollution caused by rare earth waste water treatment by membrane electrolysis process Huachang Li a Department of Research and development, BGRIMM Technology Group, Beijing, China;b Department of Research and development, BGRIMM MTC Technology Co. LTD, Beijing, China View further author
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· Rare earth (RE) is an important strategic resource; however, there has been a growing concern about the environmental problems caused by RE mining, such as ammonia nitrogen pollution and heavy metal pollution. There is a limited research about the behavior of leaching agents and the fractionation of RE and heavy metal during the
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· 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
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· The disposal of bulky low-concentration rare earth solutions (usually ≤ 200 mg L−1) is difficult and it can easily lead to the waste of rare earth resources. The precipitant separation method is a simple and effective technique that is commonly used for rare earth recovery, but the application of biological component precipitants is rarely
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· Information on rare earth elements (REEs) in soils of the Qinghai–Tibet Plateau is very limited. Therefore, this study performed field sampling to explore the concentrations, contamination degree, and
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· Download Citation | Soil Rare Earth Element and Nitride Pollution on Plant Growth and Physiology | In recent years, the problem of soil remediation in rare earth mines has become one of the hot
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:Rare Earth MetalsEnvironmental Impacts of Rare EarthEffects of Rare Earth Mining · Now, local and federal officials have shut down illegal and small-scale rare earth mining operations and embarked on a cleanup of polluted sites. Part of wider efforts across China to begin addressing
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· Although urgently needed for the decarbonization of our economies, the mining of rare earth elements has a poor environmental record. The use of electrokinetics promises a more efficient
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· The rare earth elements (REEs) are found in trace quantities in PM 10 with a total concentration (ΣREE) of 0.97 ± 0.59 ng m –3. PMF modeling for source apportionment reveals the contributions of five significant sources of PM 10 mass in the urban area, mainly from coal combustion and vehicular emission followed by biomass
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· 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
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· 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
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· Not So “Green” Technology: The Complicated Legacy of Rare Earth Mining. 12.Aug.2021 . 7 min read. Most people view technology as the future, a force of good that will generally improve quality of life around the world. In the business sector, Silicon Valley and tech startups exhibit massive growth potential; in manufacturing, new
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· Rare earth elements (REEs) are a new type of material resource which have attracted significant attention in recent years. Among them, the polluted areas of REEs are mainly located near high-polluting factories
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· Rare earth elements (REEs) are metals including the 15 lanthanides together with Yttrium and Scandium. China is the leading country in their exploitation and production (∼90%). REEs are necessary for the production of several technological devices. This extended use of REEs has raised concerns about human health safety. In this
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