亚硫酸镁盐法浆短序无污染漂白  

Short Sequence Non-Pollution Bleaching of Magnesium-Based Sulfite Pulp

作　　者：陈春霞[1] 邱玉桂[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《中国造纸学报》2005年第1期51-54,共4页Transactions of China Pulp and Paper

基　　金：国家自然科学基金(29876012);广东省自然科学基金(980596)资助课题。

摘　　要：进行亚硫酸镁盐法竹子/蔗渣浆的酸预处理(A)和酸预处理浆的压力H2O2漂白(Po)。结果表明,在实验条件下,优选出的压力H2O2漂白条件为温度80℃,时间70min,NaOH用量2.5%,Na2SiO3用量4.0%。在优化漂白条件下,A处理浆漂白效果好,APo漂浆白度达到82.0%ISO。预处理浆和原浆的Po漂白实验证明,本Po漂白工艺是适合镁盐法竹子/蔗渣浆的短序高效无污染漂白工艺。This paper mainly studies on the pressured hydrogen peroxide bleaching (i.e. Po) of magnesium-based sulfite bamboo/bagasse pulp, which is pretreated with sulfuric acid. The experiment result indicates that the optimal conditions are as follows: temperature 80°C, time 70 min, the dosage of Na2SiO3 4.0% and the charge of NaOH 2.5%. Under these optimized conditions, the brightness of the bleached pulp is up to 82.0%ISO while the kappa number is 6.8. Evidently the Po process is an effective bleaching process with non-pollution, which is suitable for this kind of pulp.

关 键 词：亚硫酸镁盐法 无污染漂白 NA2SIO3 H2O2漂白 酸预处理 漂白工艺 实验条件 NaOH 漂白效果 实验证明 蔗渣浆 ISO APo 压力 竹子 白条 用量 白度 原浆 

分 类 号：TS743.1[轻工技术与工程—制浆造纸工程] TS745