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Conversion of low-rank Kilyos coal to nitrogeneous fertilizers

By Özgül Haklı, Ozgul Hakli, Ahu Gümrah Dumanlı, Ahu Gumrah Dumanli, Aslı Nalbant, Asli Nalbant, Firuze Okyay, Yuda Yürüm and Yuda Yurum


The aim of this work is to convert the low-rank Kilyos coal to a material that could be used as a nitrogenous fertilizer. Incorporation of nitrogen into this Kilyos coal was accomplished by oxidative ammoniation, which was a two-step process involving oxidation with nitric acid followed by a treatment by ammonia. The nitrogen content of the raw coal increased from 0.8% to 8.3-9.3% after ammoniation process. Trace element concentrations in the nitro-coal, HA and OAC samples were within the acceptable ranges to be used as nitrogenous fertilizer. Therefore the oxy-ammoniated products could be considered as high-value fertilizers

Topics: TP Chemical technology, QD Chemistry
Publisher: Taylor & Francis
Year: 2009
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