烧碱-蒽醌麦草浆DEP中浓漂白研究  

Bleaching of Wheat Straw NaOH-AQ Pulp with DEP Short Sequence

作　　者：王伦[1] 韩卿[1] 

机构地区：[1]陕西科技大学造纸工程学院,陕西西安710021

出　　处：《中国造纸》2010年第12期6-9,共4页China Pulp & Paper

摘　　要：研究了烧碱-蒽醌麦草浆DEP中浓漂白过程中相关因素对漂白浆质量性能的影响,重点对D段和P段漂白过程的主要工艺参数进行了优化。结果表明,麦草浆进行D段漂白的适宜工艺参数为:ClO2用量1.2%,反应时间120min,反应温度85℃,初始pH值2.5;P段漂白适宜工艺参数为:H2O2用量2.5%,反应时间120min,反应温度85℃,初始pH值10.4。通过对比麦草浆DEP与CEH漂白效果得出,DEP漂白浆在白度及其稳定性、物理强度方面都具有一定的优势。The influencing factors of DEP mid-consistency bleaching of wheat straw NaOH-AQ pulp were studied.The results showed that the optimal conditions of chlorine dioxide bleaching are as follows：chlorine dioxide charge 1.2%,reaction time 120 min,temperature 85℃,initial pH value 2.5;The optimal conditions of hydrogen peroxide bleaching are as follows：hydrogen peroxide charge 2.5%,reaction time 120 min,temperature 85℃,initial pH value 10.4.Comparing the DEP bleached wheat straw pulp with the CEH bleached wheat straw pulp,DEP bleaching is superior in brightness improvement and brightness stability of the pulp and strength upgrading of the paper.

关 键 词：麦草浆 CLO2 H2O2 DEP中浓漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]