Hakli O.Dumanli A.G.Nalbant A.Okyay F.Yürüm Y.2024-07-222024-07-22201115567230http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/18175The 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, humic acid, and oxy-ammoniated coal samples were within the acceptable ranges to be used as nitrogenous fertilizer. Therefore the oxy-ammoniated products could be considered as high-value fertilizers. Copyright © Taylor & Francis Group, LLC.EnglishBiological materialsCoalFertilizersNitric acidOrganic acidsTrace elementsCoal sampleHumic acidnitro-coalNitrogen contentnitrogeneous fertilizeroxy-ammoniated coalRaw coalTrace element concentrationsTwo-step processCoal industryArticle10.1080/15567030902937242