DMD的活化预处理及其全无氯漂序的研究  

STUDY ON DMD PRETREATMENT AND TOTALLY CHLORINE FREE BLEACHING

作　　者：秦文娟[1] 崔谷[2] 梁文芷[2] 余惠生[1] 

机构地区：[1]中国科学院广州化学研究所纤维素开放实验室,广东广州510650 [2]华南理工大学,广东广州510641

出　　处：《林产化学与工业》1999年第3期11-15,共5页Chemistry and Industry of Forest Products

摘　　要：研究了桉木硫酸盐浆 (卡伯值为 16 5 )在漂白过程中 ,二甲基二环氧乙烷(简称DMD ,漂序中以M表示 )对氧脱木质素段和过氧化氢漂段的活化作用以及DMD用量对氧段和过氧化氢段浆性能的影响 ,使经MOQMP多段漂白的纸浆最终白度达80 %以上 ,纸浆粘度满足要求 ,可以实现桉木硫酸盐浆的全无氯漂白。dimethyldioxirane (DMD) pretreatment prior to oxygen and hydrogen peroxide bleaching was investigated. The residual lignin could be activated by DMD, which improves the selectivity of oxygen delignification and increases the brightness of hydrogen peroxide bleaching. Increasing DMD charges results in increasing delignifying and brightness. Eucalyptus kraft pulp can be bleached as high as 80 % SBD brightness by MOQMP sequence. Totally chlorine free (TCF) bleaching with DMD can be realized.

关 键 词：桉木硫酸盐浆 全无氯漂白 DMD 活化预处理 造纸 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] TS749.1