化学机械浆漂白生产过程氢氧化钠用量的优化
Sodium Hydroxide Dosage Optimization for Chemi-mechanical Pulp Bleaching Process
王辉 1马小清 1张凤山 2吴蔚然 1周景蓬 1马厚悦 1刘燕韶2
作者信息
- 1. 山东华泰纸业股份有限公司,山东东营,257335
- 2. 山东华泰纸业股份有限公司,山东东营,257335;山东黄三角生物技术产业研究院有限公司,山东东营,257399
- 折叠
摘要
对杨木化学机械浆(化机浆)漂白段氢氧化钠的最佳用量进行了优化.当H2O2和氢氧化钠的质量比为1:1时,获得纸浆的白度最高.如以提高化机浆的强度指标为目的,应适当增加氢氧化钠的用量;若以提高松厚度和不透明度为目的,则应减少氢氧化钠的用量.为了防止化机浆在储浆塔放置一段时间后返黄,至少保证漂后化机浆中的残余H2O2为漂白段H2O2总用量的10％以上.根据实验结果对化机浆生产线的漂白工艺进行了调整优化,化机浆质量达到了预期的效果.
Abstract
The optimum dosage of sodium hydroxide in bleaching section of poplar chemi-mechanical pulp was studied.When the mass ratio of hydro-gen peroxide and sodium hydroxide was 1∶1,the whiteness of pulp was the highest.To improve the strength index of chemi-mechanical pulp,the dos-age of sodium hydroxide should be appropriately increased.To improve the bulk and opacity,the dosage of sodium hydroxide should be reduced,in order to prevent the chemi-mechanical pulp from yellowing after a period of time in the pulp storage tower,the residual hydrogen peroxide in the chemi-mechanical pulp should be more than 10％total usage of the hydrogen peroxide in the bleaching section.According to the test results,the bleaching process of chemi-mechanical pulp production line was adjusted and optimized,and the pulp quality reached the expected effect.
关键词
化学机械浆/漂白/纸浆质量/氢氧化钠用量优化Key words
chemi-mechanical pulp/bleaching/pulp qualities/dosage optimization of sodium hydroxide引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据