文献类型：会议论文

英文题名：Optical properties improvement of a spruce TMP by adding OBA in peroxide bleaching

作者：Lei, Ming[1] Zhang, Honajie[1] Du, Fang[1] Zhao, Chengke[1] Wang, Junhui[2]

第一作者：Lei, Ming

机构：[1] Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, China; [2] Research Institute of Forestry, State Key Lab of Tree Genetics and Breeding, Chinese Academy of Forestry, State Forestry Administration, Beijing, 100091, China

会议日期：June 3, 2014 - June 5, 2014

会议地点：Helsinki, Finland

语种：英文

外文关键词：Cleaning - Optical properties - Oxidation - Peroxides - Thermomechanical pulping process

年份：2014

摘要：In this study, two different ways of using OBA in peroxide bleaching of HYP: adding OBA to the bleach liquor or adding OBA after the peroxide bleaching, were compared. The results showed that the unique properties of HYP can be maintained by adding OBA to the bleach liquor (peroxide/OBA bleaching process), compared to the conventional peroxide bleaching. In comparison with the process of adding OBA after peroxide bleaching, the process of adding OBA to bleach liquors can produce HYP with higher brightness and lower COD load.