金属离子对酸性过氧化氢漂白的影响  

Effects of Metal Ions on the Acidic Hydrogen Peroxide Bleaching

作　　者：云娜[1] 邱玉桂[1] 徐建平[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,广州510641

出　　处：《纸和造纸》2002年第3期40-42,共3页Paper and Paper Making

基　　金：国家自然科学基金(29876012);广东省自然科学基金(980596)资助项目

摘　　要：进行亚硫酸镁盐竹子/蔗渣浆的酸性H2O2漂白。结果表明,在实验条件下,H2SO4及EDTA的预处理能显著降低浆中过渡金属离子的含量,改善酸性H2O2漂白效果;在漂白过程中,添加适量的柠檬酸,对提高漂浆白度、粘度等有好处。Pretreatments before acidic hydrogen peroxide bleaching of magnesium based sulfite bamboo/bagasse pulp with sulfuric acid(A)or EDTA(Q)were conducted.The acidic hydrogen peroxide bleaching with the addition of citric acid were done.The results show that A or Q pretreatment can obviously decrease the contents of transition metal ions in the pulp and improve the bleaching response.During the acidic hydrogen peroxide bleaching,the addition of citric acid gains good results in increasing the brightness and viscosity etc.

关 键 词：金属离子 酸性过氧代化氢漂白 亚硫酸镁盐浆 预处理 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]