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| Study on the Pulping Performance of Different Strains of Wetland Pine Using Kraft Method |
| Received:March 18, 2025 Revised:April 12, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.07.013 |
| Key Words:wetland pine strain kraft method pulping properties |
| Fund Project:科技创新2030-重大项目课题（2023ZD0405905）。 |
| Author Name | Affiliation | Postcode | | TANG Huijun* | Yueyang Forest Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | LIU Yongfeng | Yueyang Forest Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | HE Jianglin | Yueyang Forest Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | LIANG Long | Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, Jiangsu Province, 210042 | 210042 | | YIN Hui | Yueyang Forest Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | YUN Tongtong | Yueyang Forest Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | ZHU Hongwei* | Yueyang Forest Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 |
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| Abstract:This study investigated the performance characteristics of different strains/tree-age of wetland pine during the kraft pulping process. The results indicated significant differences among the wetland pine in terms of wood density， cellulose content， lignin content， pulping yield， and bleaching performance. Among them， the cellulose content of the A05 wetland pine at 20 years of age was 42.15%， with a fine pulp yield of 46.1% after kraft pulping， and a Kappa number of 22.5. After bleaching， it could achieve a high degree of refining with the fewest number of refining revolutions， demonstrating the best pulping performance. |
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