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2023 Vol.55, Issue 1 Preview Page

Original Paper

A Study on Extraction of Softwood and Hardwood Chips Using Glycerol-Imidazole Eutectic Solvent

글리세롤-이미다졸 공융용매 처리 시 침 ‧ 활엽수 목재의 추출효율 분석

Cheol Woo Lee1
,
Kwang Seob Lee2
,
Jeong-Yong Ryu3‡
,
Kyoung-Hwa Choi4†
이 철우1
,
이 광섭2
,
류 정용3‡
,
최 경화4†
1Changgang Institute of Paper Science and Technology, Kangwon National University
2Changgang Institute of Paper Science and Technology, Kangwon National University
3Department of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University
4Changgang Institute of Paper Science and Technology, Kangwon National University
1강원대학교 창강제지기술연구소, 전임연구원
2강원대학교 창강제지기술연구소, 책임연구원
3강원대학교 산림환경과학대학 목재종이과학부 종이소재과학전공, 교수
4강원대학교 창강제지기술연구소, 연구교수
†Corresponding author: E-Mail: bleaching@kangwon.ac.kr Address: Changgang Institute of Paper Science and Technology, Kangwon National University, Chunchon, 24341, Republic of Korea)
‡Co-corresponding Author: E-Mail: jyryu@kangown.ac.kr (Address: Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea)
28 February 2023. pp. 77-82
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Abstract

This study examined whether lignin can be extracted from softwood and hardwood chips by the treatment of the deep eutectic solvent based on glycerol-imidazole (GI DES). In particular, the effects of DES treatment conditions including the reaction time and mixing ratio of water on the extraction efficiency and the recovered extractives contents were investigated. The results confirmed that the reaction time and mixing ratio of water during GI DES treatment of softwood and hardwood chips can affect on the recovered extractives content and extraction efficiency. The extraction efficiency for GI DES treatment without adding water (DES:water 100:0) was relatively higher than that with adding 10% water (DES:water 90:10). The extraction efficiency and the recovered extractives content of each wood chip increased as the reaction time increased from 2 hours to 6 hours.

Keywords
Deep eutectic solvent (DES)
imidazole
glycerol
sawtooth oak
pine
extraction efficiency
recovered extractives content
References
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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 55
  • No :1
  • Pages :77-82
  • Received Date : 2023-01-27
  • Revised Date : 2023-02-17
  • Accepted Date : 2023-02-19
  • DOI :https://doi.org/10.7584/JKTAPPI.2023.2.55.1.77
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