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Estimating REY content of eastern Kentucky coal samples based on their associated ash elements
University of Michigan, Ann Arbor, Michigan, USA.ORCID iD: 0000-0002-2265-6321
University of Kentucky, Lexington, USA.
2018 (English)In: Journal of Rare Earths, ISSN 1002-0721, Vol. 36, no 11, p. 1234-1238Article in journal (Refereed) Published
Abstract [en]

Coal and coal combustion byproducts can be considered as an alternative source of rare earth elements and yttrium (REY). The study of relationships between REY and other main coal properties could have several advantages such as estimating REY content of coal particles and designing beneficial extraction method. In this investigation, inter-correlations between REY content with coal parameters (proximate and ash elements) for a wide range of eastern Kentucky coal samples (708 records) were explored. Results demonstrate that zircon and monazite are the main source of heavy and light rare earth elements (HREE and LREE), respectively. Zr has the highest correlation with Y and Th has the strength relationship with Ce and La. In general, LREE have higher interaction with coal ash content in comparison with HREE. Results indicated that REY can be estimated quite satisfactorily by using their associated elements in coal ash.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 36, no 11, p. 1234-1238
Keywords [en]
Coal, Heavy rare earth, Light rare earth, Proximate, Ash elements
Identifiers
URN: urn:nbn:se:ltu:diva-72229DOI: 10.1016/j.jre.2018.02.015OAI: oai:DiVA.org:ltu-72229DiVA, id: diva2:1280965
Available from: 2019-01-21 Created: 2019-01-21 Last updated: 2019-08-16Bibliographically approved

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Chelgani, Saeed Chehreh

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