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Research Progress on Lignin Fractionation by Green Organic Solvent
Received:May 02, 2022  
DOI：10.11981/j.issn.1000-6842.2023.02.19
Key Words:lignin;fractionation;green organic solvent;application
Fund Project:国家自然科学基金资助项目（31971608）；辽宁省自然科学基金资助项目（2019-ZD-0125）；辽宁省“百千万人才工程”培养经费资助；辽宁省高等学校创新人才计划资助项目。
Author NameAffiliationPostcode
LI Changgeng* College of Light Industry & Chemical Engineering， Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials， Dalian Polytechnic University， Dalian， Liaoning Province， 116034 116034
JIN Huiqi College of Light Industry & Chemical Engineering， Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials， Dalian Polytechnic University， Dalian， Liaoning Province， 116034 116034
YANG Chenfeng College of Light Industry & Chemical Engineering， Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials， Dalian Polytechnic University， Dalian， Liaoning Province， 116034 116034
JIA Wenchao College of Light Industry & Chemical Engineering， Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials， Dalian Polytechnic University， Dalian， Liaoning Province， 116034 116034
SUN Yanning College of Light Industry & Chemical Engineering， Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials， Dalian Polytechnic University， Dalian， Liaoning Province， 116034 116034
SHI Haiqiang College of Light Industry & Chemical Engineering， Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials， Dalian Polytechnic University， Dalian， Liaoning Province， 116034 116034
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Abstract:
      Industrial alkali lignin and solvent-extracted lignin have the defects of complex structure and poor molecular weight homogeneity. The use of organic solvents such as ethanol， γ-valerolactone， ethyl acetate， and butanone to fractionate lignin is one of the effective ways to solve the abovementioned problems. In this review， the research progress of lignin fractionation methods using green organic solvent was briefly introduced. The fractionation methods， types of solvents used， and fractionation effects and its impact on lignin applications were analyzed. Current problems and shortcomings pertaining to lignin fractionation using organic solvents were proposed； future research directions and prospects of lignin fractionation using organic solvent were summarized and prospected. It's expected this review could provide references for the fractionation using green organic solvents and high-value application of lignin.
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