Study on Ozone in ECF Bleaching of Acacia Sulfate Pulp
Acacia farnesiana willd is a species of growing-fast wood used for papermaking.After oxygen delignification,ozone bleaching of Acacia sulfate pulp is researched in this paper,especially on the effect of different ozone charges on kappa number,viscosity,brightness and HexA content of bleached pulp.In addition,the relationships among kappa number,viscosity and brightness are analyzed respectively.The results show that 6kg/odt of ozone charge is optimum when incoming kappa number is between 6 and 8.Meanwhile,viscosity descends a little while kappa number dramatically reduces.The turning point of the corresponding kappa number from ozone delignification to bleaching effect lies at approximately 5.3.
Acacia pulp ozone bleaching ECF
LI JINBAO XIU HUIJUAN
Shaanxi Key Laboratory on Paper Technology and Specialty Papers;College of Papermaking Engineering in Shaanxi University of Science and Technology,Xian,Shaanxi,China,710021
国际会议
第二届国际造纸与环境学术会议(The Second International Papermaking & Environment Conference)
天津
英文
442-445
2008-05-14（万方平台首次上网日期，不代表论文的发表时间）