Characteristics of LCMFs and Residual Lignin in the Chemical Micronization of Eucalyptus Wood Meals Using Glycol Ether; 글리콜 에테르를 이용한 유칼립투스 목분의 화학적 미분화에 있어서 미분화 시료와 분획 리그닌의 특성

초록

Eucalyptus wood was micronized chemically with glycol ether in the presence of an acid catalyst. The chemical properties of the lignin recovered from the micronized wood were investigated to understand the behavior of wood components during the chemical micronization process. When the eucalyptus wood meals were micronized in the presence of a 3% acid catalyst, the lignocellulosic microfines comprised 47.5% of the wood meals and its Klason lignin content was 3.3%. Most of the lignin was eluted using alcohol, acetone, and 0.5 N NaOH. Moreover, lignocellulosic microfines were obtained as a result of the use of glycol ether and the acid catalyst for eluting lignin. The lignocellulosic microfines obtained through the glycol ether organosolv process mainly comprise glucose-dominant monosaccharides. therefore, these lignocellulosic microfines have a high potential for application as dissolving cellulose and/or cellulose nanocrystals. © 2023 Korean Technical Assoc. of the Pulp and Paper Industry. All rights reserved.

키워드