硫酸盐法红麻浆的中浓少污染漂白研究  

On the low pollution bleaching of kenaf kraft pulp at medium consistency

作　　者：于冬梅[1] 陈克复[1] 杨仁党[1] 徐峻[1] 田英姿[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：《中华纸业》2005年第6期38-40,共3页China Pulp & Paper Industry

摘　　要：在对红麻原料进行成分分析的基础,上提出了中浓条件下的少污染漂白方案OHQP,此工艺中氧脱木素段可脱除蒸煮后残余木素的56.2%,后序的次氯酸盐漂白段只需3%的有效氯就可提高白度20%SBD。酸性条件下EDTA预处理的中浓H2O2漂白段可将红麻浆漂至85%SBD的高白度。The low pollution bleaching process OHQP under medium consistency was put forward on the basis of composition analysis of the kenaf raw material. 56.2% of lignin after cooking was removed during the stage of oxygen delignification, and the brightness was improved by 20% SBD in the next stage of hypochlorite bleaching by adding 3% of active chlorine. The experiment also proved that the pretreatment of acid EDTA can bring the brightness to 85% SBD at the final stage of medium consistency hydrogen bleaching under the acidic condition.

关 键 词：红麻浆 中浓 硫酸盐法 污染 次氯酸盐漂白 H2O2漂白 成分分析 氧脱木素 EDTA 酸性条件 SBD 高白度 有效氯 预处理 残余 蒸煮 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]