桉木硫酸盐浆DMD漂白工艺条件的研究  

The Study on DMD Bleaching Conditions of Eucalyptus Kraft Pulp

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化学开放研究实验室,广州510650 [2]华南理工大学制浆造纸工程国家重点实验室

出　　处：《纤维素科学与技术》1999年第2期16-21,共6页Journal of Cellulose Science and Technology

摘　　要：使用新漂剂二甲基二环氧乙烷漂白桉木硫酸盐浆时，应严格控制反应的ｐＨ值为７．０－７．５，过氧硫酸盐和丙酮用量增加，二甲基二环氧乙烷的漂白能力随这增强；５％用量的ＤＭＤ漂浆经碱抽提后脱木素与氧脱木素相当，但前者漂浆得率高，脱木素选择性好。It was critical to control the reaction pH at 7 .0 ~ 7 .5 by means of buffer when in sitegenerated DMD was employed in eucalyptus kraft pulp bleaching. Increasing the chemical chargesof permonosulfate and acetone resulted in increased DMD bIeaching effectiveness. Eucalyptus kraftpulp treated with 5% DMD, followed by an caustic extraction, had the same pulp Kappa number asthat treated with oxygen, while the pulp yield and delignification selectivity of DMD bleachingwere more superior than oxygen delignilication.

关 键 词：桉木浆 硫酸盐浆 漂白 工艺 DMD 造纸 纸浆 

分 类 号：TS749.1[轻工技术与工程—制浆造纸工程] TS745