林产化学与工业Issue(6)：69-74,6.DOI:10.3969/j.issn.0253-2417.2014.06.011
蔗渣浆全无氯清洁漂白生产实践
Production Practice of Total Chlorine Free Clean Bleaching Bagasse Pulp
摘要
Abstract
The experimental research, process design and production practice of total chlorine free OpQPo bleaching bagasse pulp were introduced in this paper. The results showed that Kappa number decreased from 14. 0-15. 0 to 7. 0-7. 3 with a 50% -51% removal of residual lignin, and pulp brightness increased from 42% - 45% ( ISO ) to 58% - 60% ( ISO ) after a strengthened oxygen delignification. The production practice showed a better performance than that in lab. After subsequent pretreatment and pressurized hydrogen peroxide bleaching, the final pulp brightness was beyond 80% and the viscosity was over 800 mL/g. The pulp quality was much better than traditional Chlorine-Alkali Extraction-Hypochlorite ( CEH) bleached pulp. Moreover, adsorbable organic halides ( AOX) was not generated any more in the bleaching process. The wastewater was only discharged in chelating pretreatment ( Q ) stage and easily treated to meet the critical discharge standard due to its lower chromaticity and lower pollution load. In contrast to the traditional bleaching, no additional investment was needed in this new technology. Besides, the production procedure was flexible and the operation was stable. The investment of main equipments was about ¥ 13. 55 million yuan.关键词
蔗渣浆/全无氯漂白/生产实践/可吸附有机卤化物Key words
bagasse pulp/OpQPo bleaching/production practice/AOX分类
化学化工引用本文复制引用
何水淋,李军,李智,徐峻,莫立焕..蔗渣浆全无氯清洁漂白生产实践[J].林产化学与工业,2014,(6):69-74,6.基金项目
国家重点基础研究发展计划项目(2010CB732205) （2010CB732205）
华南理工大学制浆造纸工程国家重点实验室开放基金(201356) （201356）
