Esterification with orthophosphoric acid of cellulose samples with different extents of structural heterogeneity

МОДИФИКАЦИЯ ЛИГНИНА ФОСФОРНО-КАРБАМИДНОЙ СМЕСЬЮ И ИЗУЧЕНИЕ ЕГО СВОЙСТВ Аннотация. Изучен процесс фосфорилирования лигнина в среде фосфорной кислоты и карбамида, получен продукт, содержащий 1,3-6,8 % фосфора, 0,3-2,3 % азота и имеющий ионообменную емкость от 0,7 до 2,8 мг-экв•г-1 по Nа + , до 1,8-2,3 мг-экв•г-1 по отношению к Ni 2+ и 2,6-2,8 мг-экв•г-1 по UО 2 2+. Продукт термического разложения фосфата лигнина при 500 °С активно сорбирует пары бензола (величина сорбции 0,42-0,52 см 3 •г-1) и имеет ионообменную емкость по Nа + до 2,8 мг-экв•г-1. Ключевые слова: лигнин, фосфорная кислота, потенциометрическое титрование, ионообменная емкость, активность по бензолу, сорбция Ni 2+ и UО 2 2+

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Esterification with orthophosphoric acid of cellulose samples with different extents of structural heterogeneity

Cited by 4 publications

References 3 publications

Production of fire-retardant phosphorylated cellulose fibrils by twin-screw extrusion with low energy consumption

Production of fire-retardant phosphorylated cellulose fibrils by twin-screw extrusion with low energy consumption

Composition of a wood combustion inhibitor based on a magnesium complex containing phosphorus and nitrogen

Modification of lignin with phosphoric-urea mixture and study of its properties

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