【作者】 袁金霞； 王汉成； 黄显南； 卫威；

【Author】 Yuan Jinxia;Wang Hancheng;Huang Xiannan;Wei Wei;College of Light Industrial and Food Engineering,Guangxi University;

【机构】 广西大学轻工与食品工程学院； 广西清洁化制浆造纸与污染控制重点实验室；

【摘要】 对桐木硫酸盐浆短程序ECF漂白进行了研究,主要分析了DED、DEP、DE_PP、DE_PD 4个漂序下ClO₂和H₂O₂用量对桐木硫酸盐浆白度和黏度的影响。结果表明,无论采用哪种ECF短程序漂白,都能将桐木硫酸盐浆白度漂至80%以上,说明桐木硫酸盐浆具有良好的可漂白性;加入H₂O₂的碱抽提段（E_P）,可以在不增加漂白段数的情况下有效提高纸浆白度,采用D₁E_PD₂漂序时浆料漂白效果最好。更多还原

【Abstract】 Short sequences of ECF bleaching for sulfate pulp of paulownia were studied.The research was mainly concentrated on the influence of brightness and viscosity of pulfate pulp of paulownia with different consumption of C1O₂ and H₂O₂ in these four DED、DEP、DE_PP、DE_PD bleaching sequences.The results show that no matter what kind of short sequence of ECF bleaching can bleach the sulfate pulp of paulownia to more than 80%ISO of brightness.And it also shows that the sulfate pulp of paulownia have good bleaching property.Reinforcing E stage with H₂O₂ can improve the pulp brightness without any extra bleaching stage.In these four bleaching sequences,the bleaching sequence of D₁E_PD₂ has the best bleaching performance.更多还原