Recovery of valuable elements from Chinese coal byproducts
Mining Engineering, 2018, Vol. 70, No. 3, pp. 16-16
Fan, Maoming; Zhao, Yuemin; Long, Zhanyuan; Liu, Wenxuan
Coal is mainly composed of energy-producing elements carbon and hydrogen. In addition to these elements, coal usually contains many other valuable elements, including iron, aluminum, silicon, rare earth elements, lithium, gallium, germanium, vanadium, uranium, titanium, scandium and phosphorus. These coal-associated elements are significantly enriched in coal combustion byproduct fly ash because the majority of the main components, carbon and hydrogen elements, being removed.
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