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Ammoxidation of kraft lignin was carried out in a Parr reactor using 15 NH 3 as the main nitrogen source. Reaction parameters were set up until a total nitrogen content of ≈13wt.% in lignin was achieved, in accordance with conditions of previous studies. Analytical tools such as FTIR, Py-GC/MS, and solid state NMR were used in this research. The nature of nitrogen bondings is discussed...
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