首页 | 本学科首页   官方微博 | 高级检索  
     

杨木爆破浆两段组合漂白的研究
引用本文:党育红,李鸿魁,李佩燚.杨木爆破浆两段组合漂白的研究[J].造纸科学与技术,2004,23(3):8-11.
作者姓名:党育红  李鸿魁  李佩燚
作者单位:陕西科技大学造纸工程学院,咸阳,712081
摘    要:研究了杨木SEP H2O2两段漂白和以甲脒亚磺酸(FAS)代替H2O2进行组合漂白以及H2O2-Na2S2O4两段组合漂白.其结果表明:当H2O2总用量为5%,分配比例P1:P2为1:4时,杨木SEP H2O2-H2O2两段漂白漂后纸浆白度为64.4%SBD,白度增值为23.4%SBD,比在相同的H2O2用量下单段漂白高出1.2%SBD.H2O2-FAS两段漂白和H2O2-Na2S2O4两段组合漂白,白度增值可分别达到24.2%SBD和17.3%SBD.

关 键 词:爆破浆  漂白  过氧化氢  甲脒亚磺酸  连二亚硫酸盐

Study on the Two Stages Bleaching of Poplar Steam Explosion Pulp
Dang Yuhong Li Hongkui Li Peiyi.Study on the Two Stages Bleaching of Poplar Steam Explosion Pulp[J].Paper Science & Technology,2004,23(3):8-11.
Authors:Dang Yuhong Li Hongkui Li Peiyi
Abstract:The bleaching of poplar steam explosion pulp(SEP) is studied in this paper. This paper focuses on single-stage bleaching with hydrogen peroxide(H_2O_2) and two-stage bleaching such as H_2O_2 -H_2O_2 ,H_2O_2 -FAS and H_2O_2 -Na_2S_2O_4. The results show that, after two-stage bleaching with H_2O_2 -H_2O_2, the brightness of SEP can reach 64.4% SBD,and the brightness gain is 23.4% SBD,wh ch is 1.2% SBD higher than that of single-stage with the same 5% H_2O_2 charge,and the appropriate H_2O_2 charge ratio of two stage is 1:4. The two-stage bleaching of H_2O_2 - FAS and H_2O_2-Na_2S_2O_4 can get brightness gain of 24.2% SBD and 17.3% SBD respectively.
Keywords:steam explosion pulp  bleaching  hydrogen peroxioe  formamidine sulphinic acid  sodium hydrosulfite
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号