氧漂桉木硫酸盐浆臭氧漂白工艺研究

作者：Gao Qichao; Yang Guihua; Zhang Kai^*; Zhang Wei; Ji Xingxiang; Liu Zehua; Chen Jiachuan^*

来源：Transactions of China Pulp and Paper, 2023, 38(1): 44-52.

DOI：10.11981/j.issn.1000-6842.2023.01.44

• bleaching
• eucalyptus
• kraft pulp
• oxygen delignification
• ozone

In this study， ozone bleaching technology was introduced into bleaching process of eucalyptus kraft pulp after oxygen delignification treatment. The effects of pulp concentration， bleaching time， pH value，and ozone dosage on the properties of bleached pulp and paper were studied； the optimum bleaching conditions were preliminarily obtained. The results show that when 35% concentration of pulp was used in bleaching process with 0.9% dosage of ozone at pH value of 2.0 for 3 min， bleached pulp with 76.9% ISO brightness was produced， the viscosity and Kappa number were 535 mL/g and 2.71， respectively. Moreover， the as-prepared paper has decent physical properties with tensile index， burst index， tear index， and folding strength of 57.4 N·m/g， 4.77 kPa·m2/g， 7.95 mN·m2/g， and 89 times， respectively.

• 单位
  齐鲁工业大学; 华南理工大学