预处理和添加硅酸钠对草浆过氧化氢漂白的影响  

Effect of Acid/Chelant Pretreatment and Sodium Silicate Addition on Hydrogen Peroxide Bleaching of Non-wood Pulps

作　　者：黄方[1] 詹怀宇[1] 王萍[1] 韩涛 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广州510640

出　　处：《纤维素科学与技术》2000年第4期27-31,共5页Journal of Cellulose Science and Technology

基　　金：教育部博士学科专项科研基金资助课题

摘　　要：对酸处理 /螯合处理过程中pH值变化以及硅酸钠的使用对麦草浆和蔗渣浆过氧化氢漂白的影响进行了研究。结果表明 ,在pH值为 3时螯合处理能够使各浆料获得最佳白度 ;硅酸钠可抑制过氧化氢漂白中纤维素的降解 ,提高纸浆粘度 ,并可使Si和Mg含量较低的蔗渣浆提高白度。During the process of hydrogen peroxide bleaching of wheat straw and bagasse pulps,the influences of change of pH levels in acid or chelant treatment and the addition of Na 2SiO 3 are discussed.The results suggested that the pulps could have the best brightness in chelant treatment at pH 3.Na 2SiO 3 could inhibit the decomposition of H 2O 2,improve the viscosities of wheat straw and bagasse pulps,and increase the brightness of bagasse pulp that had low contents of Si and Mg.

关 键 词：麦草 蔗渣 过氧化氢 纸浆漂白 硅酸钠 预处理 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]