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Occurrence and distribution of minor elements in coal

Journal Article · · Univ. Mo., Sch. Mines Metall., Bull., Tech. Ser.; (United States)
OSTI ID:6025677
Diverse information explaining the occurrence and range of concentration of both major and minor elements found in coal and coal ash is related to ash constituents found in modern-day plants. Element content in intrinsic ash (original plant ash) versus extraneous ash (clays, etc. washed into the swamp) is used to explain the wide variability in concentration of some elements found in coal. Soluble elements carried into coal-forming swamps were absorbed through plant roots, concentrated in the leaves or plant tissue, and remained during peatification unless redissolved and carried away. Some secondary enrichment of elements like Ge occurred by differential leaching and re-precipitation. Minor elements in coal such as Cu, Zn, B, Co, and Mn are essential in low levels for most green plants, and therefore are found in low levels in the coal unless enriched due to extraneous source material. Major and minor element concentration found in coal ash and ash from modern plants are presentedn active sites has been proposed.
OSTI ID:
6025677
Journal Information:
Univ. Mo., Sch. Mines Metall., Bull., Tech. Ser.; (United States), Journal Name: Univ. Mo., Sch. Mines Metall., Bull., Tech. Ser.; (United States) Vol. 85; ISSN MOMTA
Country of Publication:
United States
Language:
English