Quantification of the modes of occurrence of 42 elements in coal
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DOI: 10.1016/j.coal.2017.09.005
Abstract: Abstract A series of 20 coal samples were subjected to sequential leaching with ammonium acetate, hydrochloric acid, hydrofluoric acid, and nitric acid to quantify the modes of occurrence of about 42 elements. The results indicate… read more here.
Keywords: occurrence elements; rank coals; modes occurrence; low rank ... See more keywords
Fluorine in Coal: The Modes of Occurrence and its Removability by Froth Flotation
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DOI: 10.1080/19392699.2016.1215312
Abstract: ABSTRACT Fluorine is one of the trace elements in coal that is harmful to the ecological environment and human’s health. Flotation, a method of fine-coal processing, may be useful in reducing the fluorine content in… read more here.
Keywords: modes occurrence; flotation; coal modes; fluorine coal ... See more keywords