【作者】 范兴刚；

【导师】 石淑兰；

【作者基本信息】 天津轻工业学院 ， 制浆造纸工程， 2000， 硕士

【摘要】 本论文研究了芦苇的湿法备料：芦苇的Soda-AQ制浆及己烯糖醛酸（HuA）的测定：芦苇的碱法置换蒸煮特性；芦苇浆的无氯漂白特性。研究结果表明： 取自工厂的干法备料后的芦苇原料，再经湿法备料处理，试验测得湿法备料得率为86.3％。湿法备料的苇片洁净度高，其化学成分中灰分含量明显降低，有利于蒸煮和黑液的碱回收。糖类组分中，聚葡萄糖相对含量增加。 芦苇的常规法碱法蒸煮过程中，添加0.05％CT-1蒸煮助剂，可明显地降低纸浆硬度，提高纸浆得率。 采用紫外分光光度（UV）法测得Soda法苇浆中的HuA含量非常少，仅为lμmol/g左右，远低于硫酸盐法木浆中的HuA含量，其对纸浆硬度测定值影响较小。 与常规Soda-AQ相比，芦苇碱法置换蒸煮能较大程度降低能耗，提高纸浆白度，减少成本；原浆物理强度比常规蒸煮原浆好得多，裂断长提高1.28km，耐破指数高出1.09KPa.m²/g，撕裂指数上升2.15mN.m²/g，但较难打浆。 置换蒸煮过程中，由于黑液的加入，实际的耗碱量可能要比预计的用碱量稍高。蒸煮后的黑液残碱较高，有利于下一次的置换蒸煮，置换蒸煮的黑液清淡、无沉淀、无粘迹，固形物含量低，SiO₂含量少，粘度低，有利于废液的碱回收。 不论是常规Soda-AQ芦苇浆，还是碱法置换蒸煮芦苇浆，氧脱术素都能够在保持纸浆一定强度的情况下，有效地脱除纸浆中的残余术素，提高纸浆白度；少量的H₂O₂强化的氧脱木素有效地增加了氧脱木素的效果，提高脱木素选择性。0₂强化的H₂O₂后续漂白可以获得更好的漂白效果。在芦苇Soda-AQ浆漂白试验中，用H₂O₂漂白作为最终漂白段，可有效地提高白度，减少返黄。采用QOpAPoP、QOpAP₁P₂ QOAP₁P₂、QOAPoP等TCF漂白程序，可将 天津轻工业学院硕士学位论文芦苇碱法浆或芦苇置换蒸煮浆漂至75个78饥。采用ECF漂白程序QOPDP可将置换蒸煮芦苇浆漂到85M 以上的高白度，而且漂白后的纸浆粘度与原浆相比降低较小。这说明ECF漂白完全可以制得强度好白度高的置换芦苇浆。更多还原

【Abstract】 In this paper, wet cleaning system of reed, pulpabilities of reed in conventional Soda-AQ and displacing Soda-AQ pulping were studied. Effects of pulping factors on the resultants were studies. In addition , bleachability of this two reed pulps was also researched. The results shows that: After wet cleaning system , dust and fine were removed .this increased the pulpabilities of raw materials. As a kind of AQ, additive CT-i can clearly increase delignification , and protection of cellulose and hemicelluloses is also enhanced .the quantity of 0.05% is equal to that of 2% alkali. The content of HUA in conventional Soda pulping is little the degree of it is iumollg. Compared to conventional Soda-AQ pulping ; displacing pulping decreases the consumption of energy, reduces the number of K1VInO4, increases the brightness of pulping , which means the pollutant loads of bleaching effluent would be decreased . All strength properties of displacing pulp are better than that of conventional . The content of Si02 in black liquor is greatly cut down . But displacing cooking requires slightly higher alkali charge than conventional. Bleachability of both of pulps is very well, through ECF bleaching and TCF bleaching , the pulps obtain high brightness. Oxygen delignification can effectively remove the residual lignin in pulp and increase brightness with the viscosity decreased little . Reinforced-oxygen-delignification with 11202 can improve little . Reinforced-oxygen-delignification with H202 can improve the degree and selectivity of delignification . H202 bleaching as the final bleaching stage is very veil, it can not only improve the brightness , but also save bleaching cost. Through bleaching stage QOpDP, the final brightness of displacing reed pulp achieve 85%ISO更多还原