文献类型：期刊文献

英文题名：Using an Optical Brightening Agent To Boost Peroxide Bleaching of a Spruce Thermomechanical Pulp

作者：Zhang, Hongjie[1] Lei, Ming[1] Du, Fang[1] Li, Hailong[1] Wang, Junhui[2]

第一作者：Zhang, Hongjie

通信作者：Zhang, HJ[1]

机构：[1]Tianjin Univ Sci & Technol, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China;[2]State Forestry Adm, Res Inst Forestry, Chinese Acad Forestry, Lab Tree Breeding & Cultivat, Beijing 100091, Peoples R China

年份：2013

卷号：52

期号：36

起止页码：13192-13197

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20133816767178);Scopus(收录号：2-s2.0-84884172746);WOS:【SCI-EXPANDED(收录号:WOS:000330098500049)】；

基金：The authors acknowledge financial support of the Foundation for the Development of Science and Technology in Tianjin Universities (Grant 20110518), the Project of Tianjin Scientific Innovation System and Platform Construction (Grant 10SYSYJC28000), and the 12th five-year scientific and technological Supporting program of the Ministry of Science and Technology of China (Grant 2012BAD01B01).

语种：英文

外文关键词：Alkalinity - Bleaching - Chemical oxygen demand - Cleaning - Luminance - Oxidation - Peroxides - Thermomechanical pulp

摘要：High-brightness high-yield pulps (HYPs) can be produced based on conventional peroxide bleaching, but the strong alkaline conditions needed would lead to the significant loss of bulk, scattering coefficient, and pulp yield, among other drawbacks. Recently, the use of an optical brightening agent (OBA) in HYP and its production of HYP-containing fine papers have received much attention. In this study, two different ways of using OBA in peroxide bleaching of spruce thermomechanical pulp (TMP), adding OBA to the bleach liquor or adding OBA after peroxide bleaching, were compared. The results showed that the unique properties of spruce TMP can be maintained by adding OBA to the bleach liquor (peroxide/OBA bleaching process). In addition, in comparison with the process of adding OBA after peroxide bleaching, the process of adding OBA to bleach liquors can produce TMP with higher brightness and OBA brightening efficiency and lower chemical oxygen demand load and chemical cost.