Delignification of softwood by ozonation-Reference-Cited by-同舟云学术

Delignification of softwood by ozonation

Published:2009-10-31 Issue:11 Volume:81 Page:2081-2091
ISSN:1365-3075
Container-title:Pure and Applied Chemistry
language:
Short-container-title:

Author:

Mamleeva Nadezhda A.¹,Autlov Stanislav A.²,Bazarnova Natal’ya G.²,Lunin Valery V.¹

Affiliation:

1. 1Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory 1, Building 3, Moscow 119992, Russia

2. 2Chemistry Department, Altai State University, Lenin prosp., 61, Barnaul 656049, Russia

Abstract

Ozonation of aspen sawdust of various moisture content (MC) values was investigated. Ozone consumption corresponding to the completion of the ozonation process was shown to be governed by the wood MC. Cellulose-containing material of a low (1–3 %) residual lignin content (LC) was produced under ozonation. It is proposed that ozone dissolved in water is responsible for delignification. The conversion of lignin during softwood ozonation was investigated by UV and Fourier transform-infrared (FT-IR) spectroscopy. The pathways of lignin transformations are influenced by wood MC value.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry

Link

https://www.degruyter.com/downloadpdf/journals/pac/81/11/article-p2081.xml

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