文献类型：会议论文

英文题名：High-brightness-bleaching of chemithermomechanical pulps from poplar

作者：Shen, KZ[] Liu, Y[] Fang, GG[] Deng, YJ[] Li, P[]

第一作者：沈葵忠

通信作者：Shen, KZ[1]|[a00058fbe370eb8ea0fac]沈奎忠;[a00054651c803d63a32cf]沈葵忠;[a0005b29aa5c5ce294d9b]沈葵忠;[a00057822387007c6f836]沈葵忠;

机构：[1]Chinese Acad Forestry, Res Inst Chem Proc & Utilizat Forest Prod, Nanjing 210042, Peoples R China

会议论文集：1997 Nanjing International Symposium on High Yield Pulping

会议日期：NOV 21-23, 1997

会议地点：NANJING, PEOPLES R CHINA

语种：英文

外文关键词：Populus nigra; bleaching; hydrogen peroxide; pulp brightness; brightness stability

年份：1997

摘要：The bleaching responses of chemithermomechanical pulp from Populus nigra were investigated. 2% to 4% peroxide added in one stage bleaching sequence, the pulp brightnees of over 75% ISO was achieved; and at a total peroxide charge level of 5% in two stage bleaching operation, the pulp brightness were at the range of 80%similar to 85% ISO. Two-stage peroxide bleaching was superior to single-stage, Effects on brightness and brightness stability by the using amount of peroxide, sodium hydroxide, etc., as well as the post-treatment operation with oxalic acid, were considered.