Numerical Optimization of the Abies Ethanol Lignin Sulfation Process with Sulfamic Acid in 1,4-Dioxane Medium in the Presence of Urea : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.17516/1998-2836-0178

Ключевые слова: abies ethanol lignin, sulfation, sulfamic acid, urea, 1,4-dioxane, sulfated ethanol lignin, process optimization

Аннотация: The process of abies ethanol lignin sulfation with sulfamic acid in 1,4-dioxane medium in the presence of urea was optimized by calculation methods. The influence of such factors, as the ratio of lignin/sulfating complex (L/SC), temperature and time of the sulfation process on the sulfur content in the resulting sulfated ethanol liПоказать полностьюgnin and its yield, has been established. The variance analysis of the obtained mathematical models testifies their good predictive properties. The optimal conditions of abies ethanol lignin sulfation process, which provide the formation of water-soluble sulfated lignin with a high yield (to 100 % wt.) and sulfur content (up to 7.9 % wt.), have been established. They are: temperature of 95-100 degrees C, the ratio L/SC 1:2,3-1:2:9 and the time of the process 119-137 minutes. The process of abies ethanol lignin sulfation with sulfamic acid in 1,4-dioxane medium in the presence of urea was optimized by calculation methods. The influence of such factors, as the ratio of lignin/sulfating complex (L/SC), temperature and time of the sulfation process on the sulfur content in the resulting sulfated ethanol lignin and its yield, has been established. The variance analysis of the obtained mathematical models testifies their good predictive properties. The optimal conditions of abies ethanol lignin sulfation process, which provide the formation of water-soluble sulfated lignin with a high yield (to 100 % wt.) and sulfur content (up to 7.9 % wt.), have been established. They are: temperature of 95-100 °C, the ratio L/SC 1:2,3-1:2:9 and the time of the process 119-137 minutes. © Siberian Federal University. All rights reserved

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Издание

Журнал: JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-CHEMISTRY

Выпуск журнала: Vol. 13, Is. 2

Номера страниц: 232-246

ISSN журнала: 19982836

Место издания: KRASNOYARSK

Издатель: SIBERIAN FEDERAL UNIV

Персоны

  • Kazachenko Aleksandr S. (FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, Krasnoyarsk, Russia)
  • Vasilyeva Natalya Yu (FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
  • Sudakova Irina G. (FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, Krasnoyarsk, Russia)
  • Levdansky Vladimir A. (FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, Krasnoyarsk, Russia)
  • Lutoshkin Maxim A. (FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, Krasnoyarsk, Russia)
  • Kuznetsov Boris N. (FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)

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