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对硫酸盐桉木浆进行氧脱木素后得到白度、黏度、卡伯值分别为49%ISO,755ml/g,11.1;浆料首先进行酸预处理,然后经过不同工艺条件的低浓度纸浆臭氧漂白,最后经过过氧化氢漂白。实验结果表明:不同工艺条件的低浓度纸浆臭氧漂白对漂后纸浆质量性能有明显的影响,对比不同工艺条件下臭氧—TCF漂白后纸浆性能得到桉木硫酸盐浆低浓臭氧漂白的最佳工艺条件为:Z段浆浓3%,p H小于2,臭氧用量0.8%。
The whiteness, viscosity and kappa number of the eucalyptus pulp after oxygen delignification were 49% ISO, 755ml / g and 11.1, respectively. The pulp was first acid pretreated and then subjected to low concentration pulp with different process conditions Ozone bleaching, and finally hydrogen peroxide bleaching. The experimental results show that the bleaching of pulp with low concentration of different process conditions has a significant effect on the pulp quality performance after bleaching. Compared with the bleaching ozone-TCF bleaching process, the optimum bleaching process of eucalyptus kraft pulp with low concentration ozone The conditions are: Z section slurry concentration 3%, p H is less than 2, the amount of ozone 0.8%.