棉秆烧碱-蒽醌法纸浆DQP短程序漂白工艺的研究  

Study on DQP Bleaching Technology of Cotton Stalk Soda-AQ Pulp

作　　者：王键[1] 詹怀宇[1] 陈嘉川[2] 

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 [2]山东轻工业学院制浆造纸省级重点学科,济南250100

出　　处：《造纸科学与技术》2006年第2期9-12,共4页Paper Science & Technology

基　　金：华南理工大学制浆造纸工程国家重点实验室开放基金资助项目(编号200418)

摘　　要：研究了棉秆浆无元素氯短程序DQP漂白各段工艺条件。研究结果显示,D段在用氯量1%时能获得较好的漂白效果,白度可以达到75%ISO以上;D段在其它条件不变时,硫酸用量在2.5%以内用量越多漂白效果越好,但是纤维降解增加,硫酸用量不宜超过1.5%;P段中的NaOH用量为1%时漂白效果较好,P段H2O2用量超过1.5%以上白度几乎不再提高,而纸浆粘度和尘埃度随着H2O2用量增加继续下降。Technological conditions of each stage during DQP bleaching of cotton stalk soda-AQ pulp were studied in this paper. The results indicated that the DQP bleached pulp could reach 75% ISO brightess as 1.0% ClO2 was used in D stage. At the same other conditions, with the increase of H2SO4 dosage within 2.5% in D stage, the brightness of DQP bleached pulp increased, but the viscosity of the pulp decreased. The suitable H2SO4 dosage in D stage was 1.5%. In P stage, 1% of NaOH charge and 1.5% of H2O2 dosage resulted in better bleaching effect. With the increase of H2O2 dosage, both pulp viscosity and dirt count number reduced.

关 键 词：棉秆浆 ECF 短程序漂白 DQP 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]