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| 马尾松硫酸盐浆两段氧脱木质素最佳工艺条件的研究 | |
| 引用本文： | 马邕文,万金全,陈中豪,李新平,宋彬章.马尾松硫酸盐浆两段氧脱木质素最佳工艺条件的研究[J].林产化学与工业,2001,21(1):45-49. |
| 作者姓名： | 马邕文 万金全 陈中豪 李新平 宋彬章 |
| 作者单位： | 1. 华南理工大学 2. 西北轻工业学院, 3. 广东省造纸研究所, |
| 基金项目： | 国家自然科学基金资助项目! (2 980 6 0 0 7)，广东省自然科学基金博士启动资助项目! (974 0 94 ) |
| 摘 要： | 研究了马尾松硫酸浆两段氧脱木质素的最佳工艺条件。结果表明，第一段氧脱木质素的条件为：氧压0．6MPa，温度100℃，时间80min,NaOH 量5％，MgSO4用量0．5％，浆浓10％；第二段氧脱木质素的条件为：氧压0．4MPa，温度90℃，时间60min，NaOH用量3％，MgSO4用量0．5％，浆浓10％。在此条件下，OIOⅡ木质素脱除率达到72．5％，粘度775．2cm^3/g,得率90．5％。经过氧脱木质素后浆的裂断长5．8km，耐破指数5．3kPa.m^2/g，撕裂指数12．7mN.m^2/g。 |
| 关 键 词： | 马尾松 硫酸盐浆 两段氧脱木质素 制浆工艺 木质素脱除率 纸浆粘度 造纸 |
| 文章编号： | 0253-2417(2001)01-0045-05 |
STUDY ON OPTIMUM CONDITIONS FOR TWO STAGE OXYGEN DELIGNIFICATION OF MASSON PINE KRAFT PULP |
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| MA Yong wen ,WAN Jin quan ,CHEN Zhong hao ,LI Xing ping ,SONG Bing zhang.STUDY ON OPTIMUM CONDITIONS FOR TWO STAGE OXYGEN DELIGNIFICATION OF MASSON PINE KRAFT PULP[J].Chemistry & Industry of Forest Products,2001,21(1):45-49. | |
| Authors: | MA Yong wen WAN Jin quan CHEN Zhong hao LI Xing ping SONG Bing zhang |
| Institution: | MA Yong wen 1,WAN Jin quan 1,CHEN Zhong hao 2,LI Xing ping 2,SONG Bing zhang 3 |
| Abstract: | The optimum conditions for two-stage delignification of massonpine kraft pulp were studied. The results showed that conditions of the first oxygen delignification stage are: oxygen pressure 0.5 MPa, NaOH charge 5%, MgSO4 charge 0.5%, cooking at 100℃ for 80 min. Conditions of the second oxygen delignification stage are:oxygen pressure 0.4MPa, NaOH charge 3%, MgSO4 charge 0.5%,cooking at 90 ℃ for 60 min.Results obtained under these two stages (OⅠOⅡ) are: pulp delignification rate 72.5%, pulp viscosity 775.2cm3/g, pulping yield 90.5%, breaking length 5.8 km, endurance index 5.3 kPa·m2/g, tear index 12.7 mN·m2/g. |
| Keywords: | masson pine kraft pulp two stage oxygen delignification delignification rate pulp viscosity |
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