Nitration of sulfate lignin under homogeneous conditions studied by electron spectroscopy


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The nitration of sulfate lignin by nitric acid in an aqueous-dioxane medium under homogeneous conditions was studied. The method proposed makes it possible to synthesize nitrated lignin with the content of one nitro group per 1.5–2 phenylpropane units. At low consumptions of nitric acid, the nitration starts after an induction period, the duration of which decreases with increasing temperature. The presence of the induction period is related to redox transformations forming nitrous acid that nitrosates lignin.

Sobre autores

Yu. Khabarov

Northern (Arctic) Federal University named after M. V. Lomonosov

Autor responsável pela correspondência
Email: khabarov.yu@mail.ru
Rússia, 17 nab. Severnoi Dviny, Arkhangelsk, 163002

N. Kuzyakov

Northern (Arctic) Federal University named after M. V. Lomonosov

Email: khabarov.yu@mail.ru
Rússia, 17 nab. Severnoi Dviny, Arkhangelsk, 163002

V. Veshnyakov

Northern (Arctic) Federal University named after M. V. Lomonosov

Email: khabarov.yu@mail.ru
Rússia, 17 nab. Severnoi Dviny, Arkhangelsk, 163002

G. Komarova

Northern (Arctic) Federal University named after M. V. Lomonosov

Email: khabarov.yu@mail.ru
Rússia, 17 nab. Severnoi Dviny, Arkhangelsk, 163002

A. Garkotin

Northern (Arctic) Federal University named after M. V. Lomonosov

Email: khabarov.yu@mail.ru
Rússia, 17 nab. Severnoi Dviny, Arkhangelsk, 163002

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