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| Research Progress of Four Common Lignin Fractionated by Organic Solvent Method |
| Received:July 29, 2023 Revised:September 25, 2023 |
| DOI：10.11981/j.issn.1000-6842.2024.02.01 |
| Key Words:lignin;fractionation method;organic solvent;molecular weight distribution |
| Fund Project:国家自然科学基金面上项目（22278046）；华南理工大学制浆造纸工程国家重点实验室开放基金（202111）。 |
| Author Name | Affiliation | Postcode | | CHENG Pengchao | 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 | | LI Yao | College of Light Industry & Chemical Engineering，Liaoning Key Lab of Lignocellulose Chemistry and Biomaterials，Dalian Polytechnic University，Dalian，Liaoning Province，116034 | 116034 | | LI Jigeng | State Key Lab of Pulp and Paper Engineering，South China University of Technology，Guangzhou，Guangdong Province，510640 | 510640 | | WANG Xing | College of Light Industry & Chemical Engineering，Liaoning Key Lab of Lignocellulose Chemistry and Biomaterials，Dalian Polytechnic University，Dalian，Liaoning Province，116034 | 116034 | | SUN Guangwei* | College of Light Industry & Chemical Engineering，Liaoning Key Lab of Lignocellulose Chemistry and Biomaterials，Dalian Polytechnic University，Dalian，Liaoning Province，116034 | 116034 | | ZHANG Xinyue | 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: |
| With the development of research on lignin-based biomass materials， in order to further improve the performance of lignin-based biomass materials， it is necessary to classify the lignin raw materials. Organic solvent fractionation is a simple and feasible method to obtain lignin with specific physicochemical properties. This paper summarized the research results of classifying 4 kinds of lignin， including sulfate lignin， organic solvent lignin， alkali lignin and enzymolysis lignin， by using organic solvent method in recent years. The molecular weight and molecular weight distribution， as well as the contents of functional groups such as alcohol hydroxyl group， phenol hydroxyl group and methoxy group， were used as grading indexes. The characteristics， advantages and disadvantages of single or multiple organic solvents used in different fractionation strategies were compared， and the research on lignin fractionation was briefly summarized and prospected. |
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