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environmental review of coal ash as a resource for rare earth

International Journal of Coal Geology Elsevier

Call for papers for Special Issue "Critical Elements in Coal and Coal Ash and their Recovery" of International Journal of Coal Geology Elements including rare earth elements (REE) and other critical elements such as Ge, Ga, Nb, V, Mo, U, etc. play an important role in many aspects of 21st-century life.

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[] Determination of Germanium Content in Coal Ash by

A method for the determination of Ge in coal ash by wavelength dispersive X-ray fluorescence (WDXRF) spectrometry has been developed. Using the Compton peak for matrix correction, fused glass discs (1 part ash + 9 parts Li,B,O&iBO,), and synthetic coal ash standards, we have established a calibration line with a correlation coefficient of 0.999.

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Rare Earth ElementsGeoscience Australia

Sep 02, 2021 · A DFS suggested that the established resources could support an initial mine life of 8 years with plans to produce up to 15 000 tpa of mixed rare-earth carbonates on site at Yangibana. It notes that the project has high NdPr to TREO ratio at 41% and that the metallurgical pilot test plant achieved a recovery of 75.6%.

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Coal Ash Waste or Resource

the metals in coal ash are a liability when impounding it, there are sought-after metals being extracted from coal ash. For example, coal ash contains lithium, which is being extracted from coal ash in China. The ash also contains several rare earth elements. The fact that our country

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DOE backs REE recovery from coal waste Mining Magazine

The US Department of Energy has granted up to US$1 million towards a Texas Mineral Resources (TMRC) project that aims to produce rare earth elements (REE) from Pennsylvania coal waste. Aim is to profitably produce scandium and other rare earth minerals from Pennsylvania anthracite coa

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Investigating the Potential for Recovering REEs from Coal

The global demand for rare earth elements (REE) has increased significantly in the past 20 years due to their extensive use in electronics and other applications. Although many recent studies related to quantifying rare earth elements in coal and coal combustion byproducts have been published, methods of extracting rare earth elements are still

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State, Campbell County pursue rare earth opportunities

Jul 05, 2021 · A rare opportunity. Coal ash isn't the only potential source of rare earth elements from mining in the PRB, Bell said. The clays that settle above and below coal seams also have rare earths in

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US8968688B2 Recovery of rare earth elements and

Rare earth elements are recovered from coal ash. The coal ash with rare earth elements can be treated with a mineral acid to form an aqueous mineral acid solution. The aqueous mineral acid solution can be extracted to form an organic solution that includes the rare earth salts. The organic solution can be mixed with water to form an aqueous solution that includes the rare earth salts.

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Tracking environmental actions under Biden Washington Post

The Interior Department's Bureau of Ocean Energy Management signed off on the final environmental review for Vineyard Wind, an 800-megawatt offshore wind project that promises to the be the nation

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Effect of Temperature on Rare Earth Elements Recovery from

Jan 01, 2021 · In 2021, the amount of fly ash produced is estimated to reach 9.72 million tons. Utilization of coal fly ash is still limited while poor handling on abundant amount of this material can cause air, soil and water pollution. This research aims to recover rare earth elements contained in coal fly ash.

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Overview Rare Element Resources

Rare earth mineralization was first discovered in 1949, and the U.S. Bureau of Mines conducted some limited exploration in the early 1950s. In 1972, exploration was reinitiated by Duval Corporation and focused on copper/molybdenum, but it was soon determined that Bear Lodge had the potential to host an economically significant rare earth deposit.

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Extracting rare-earth elements from coal could soon be

Feb 02, 2021 · The U.S. could soon decrease its dependence on importing valuable rare-earth elements that are widely used in many industries, according to a team of Penn State and U.S. Department of Energy researchers who found a cost-effective and environmentally friendly way to extract these metals from coal byproducts.

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The Coal Plant Next Door — ProPublica

Mar 22, 2021 · "The coal-ash rule was a compromise," said Avner Vengosh, professor of earth and ocean sciences at Duke University, who is one of the nation's leading experts on coal ash.

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Differences in bulk and microscale yttrium speciation in

Oct 17, 2021 · Coal combustion ash is a promising alternative source of rare earth elements (REE; herein defined as the 14 stable lanthanides, yttrium, and scandium). Efforts to extract REE from coal ash will depend heavily on the location and speciation of these elements in the ash.

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Heileen Hsu-KimDuke Civil and Environmental Engineering

Duke researchers N.C. coal ash could be a resource, not just a hazard (Jun 27, 2021The News & Observer) Appalachian Coal Ash Richest in Critical Rare Earth Elements (May 27, 2021) Oxygen Key to Containing Coal Ash Contamination (Apr 13, 2021)

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Appalachian coal ash richest in rare earth elements

May 27, 2021 · A study of the content of rare earth elements in U.S. coal ashes shows that coal mined from the Appalachian Mountains could be the proverbial golden goose for

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Rare Earth Metals Supply Chain Caught Up in Global

Rare earth metals and their alloys populate many of our everyday devices rechargeable batteries, cell phones, magnets, fluorescent lighting, and the list goes on. But, as with any rare or sought-after resource, the supply chain is caught up in global politics.

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Rare Earth Elements in North Dakota Lignite Coal and

Apr 09, 2021 · Seredin and Dai have proposed a method of resource assessment for evaluating the suitability of coal (or coal ash) as a source for REE recovery. They have established a total REE (TREE) cutoff of between 800 and 1000 ppm rare earth oxide content in the coal ash, depending on seam thickness as well as the parameters shown below

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The Occurrence and Concentration of Rare Earth Elements in

The recovery of rare earth oxides from a phosphoric acid by-product. Part 3. The separation of the middle and light rare earth fractions and the preparation of pure europium oxide journal, September 1996. Preston, J. S.; du Preez, A. C.; Cole, P. M. Hydrometallurgy, Vol. 42, Issue 2; DOI 10.1016/0304-386X(95)00079-V

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Recovery of rare earth elements from coal fly ash by

Coal fly ash (CFA) is one of the most promising secondary sources of rare earth elements and yttrium (REY). This research first studied the modes of occurrence of REY in CFA collected from a China's power generation plant which utilizes a coal feedstock with an elevated REY content.

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Don't Panic about Rare Earth Elements Scientific American

May 31, 2021 · Don't Panic about Rare Earth Elements The materials used in iPhones and Tesla cars need not become a long-term casualty of a U.S.-China trade war By Jeremy Hsu on May 31, 2021

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NAE Website Op-Ed Recovery of Rare Earths from Coal and

Sep 26, 2021 · The possible recovery of rare earth and other critical elements from abundant coal and byproducts is an exciting new research area and represents a dramatic paradigm shift for coal. The development of an economically competitive domestic supply of REEs will help to maintain the nation's economic growth and national security.

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Rare earth elements A review of applications, occurrence

Jul 01, 2021 · Rare earth elements A review of applications, occurrence, exploration, analysis, recycling, and environmental impactNew strategies for the future supply of REE including recent developments in the extraction of REE from coal fired ash and recycling from e-waste are presented.Social and environmental impact of the rare earth

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Technology Allows Inexpensive Extraction of Rare Earth

Oct 17, 2021 · "Coal ash is rich in rare earth elements, as rich as some of the ore deposits. The United States produces about 129 million tons of coal ash every year. Less than half of it is recycled into low-value products," she said. "In one example, a coal ash storage dike broke and the ash

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Coal Ash ReuseCoal Ash (Coal Combustion Residuals, or

Jan 25, 2021 · Coal ash can be beneficially used to replacematerials removed from the earth, thus conserving natural resources. EPA encourages the beneficial use of coal ash in an appropriate and protective manner, because this practice can produce positive environmental, economic, and product benefits such as reduced use ofresources,

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Rare Opportunity Researchers See Potential In Mining Coal

Dec 18, 2021 · Coal mining waste is a long-term problem. But researchers hope to turn some of that pollution into valuable products, called rare earth elements.

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COAL COMBUSTION RESIDUES IN THE UNITED STATES A

results in environmental degradation and poses health risks to wildlife. The goal of this paper is to review the literature related to environmental risks posed by aquatic disposal of CCR and to make recommendations for future research. Our purpose is nor to provide a thorough review of CCR disposal technologies, or chemical and

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Coal fly ash as a resource for rare earth elements

Jan 24, 2021 · As ash is derived from the inorganic minerals in the coal such as quartz, feldspars, clays and metal oxides, the major elemental composition of coal ash is similar to the composition of a wide variety of rocks in the Earth's upper crust (EPRI 2021). Therefore, oxides of silicon, aluminium, iron and calcium contain more than 90 % of the mineral

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Rare Earth Elements Discovered in American CoalENS

Jan 30, 2021 · "As far as I know, our team is the first in the world to have provided a 98 percent pure rare earth concentrate from a coal source," said Rick Honaker, UK professor of mining engineering.

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WVU awarded $5 million to continue rare earth project

Oct 01, 2021 · The West Virginia Water Research Institute at West Virginia University has been awarded $5 million by the U.S. Department of Energy to scale up its successful Rare Earth Recovery Project, which will include building a facility at a new acid mine drainage treatment plant near Mount Storm.. The funding received the full support of West Virginia's five congressional delegates and will help

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