Mössbauer characterization of feed coal, ash and fly ash from a thermal power plant
作者： F. Reyes Caballero , S. A. Martínez Ovalle , M. Moreno Gutiérrez
DOI: 10.1007/S10751-015-1140-1
关键词: Fly ash 、 Coal combustion products 、 Hematite 、 Metallurgy 、 Pyrite 、 Mineralogy 、 Magnetite 、 Materials science 、 Jarosite 、 Thermal power station 、 Coal
摘要: The aim of this work was apply 57Fe Transmission Mossbauer Spectroscopy at room temperature in order to study the occurrence iron-containing mineral phases in: 1) feed coal; 2) coal ash, obtained different stages ASTM D3174 standard method; and 3) fly produced when is burned TERMOPAIPA IV thermal power plant localized Boyaca, Colombia. According results, we can conclude pyrite jarosite Fe2+ Fe3+ crystalline paramagnetic phases, superparamagnetic hematite ash; noncrystalline magnetite ash. Precisely, for a basic understanding, discusses some possible transformations that take place during combustion.
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