An effective method for preventing spontaneous combustion of coal is to cover oxygen insulation material on coal stockpiles.an organic oxygen insulation material which had been prepared was covered over the surface of coal stockpiles.Putting in atmosphere over some days,the coal covered under the material was analyzed by IR spectra and was compared with the uncovered coal and fresh coal.The results have shown the amount of oxidized functional groups of coal increased with the oxidation reaction.Also,the pea...
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