STUDY ON THE OXYGEN DELIGNIFICATION OF THE USE OF PERACETIC ACID PRETREATMENT COMBINATING WITH SURFACTANT
Studying the role of hard wood pulp oxygen delignification of the use of peracetic acid(Pa) pretreatment combined with Surfactant AO. The experiment showed that when the peracetic acid dosage was 0.5%, pH was 6, the reaction time was 30min, the surfactant dosage was 0.2%, the pulp delignification rate increased by 13%, and the delignification selectivity also improved significantly. After QP bleaching treatment, the whiteness of enhanced oxygen delignification slurry reached 83.6%ISO, while the whiteness of conventional oxygen delignification pulp was only 73.5%ISO.
oxygen delignification peracetic acid (Pa) pretreatment Surfactant AO TCF bleaching
Liu Mingyou Guan Qingfang Xiao Xianying
State Engineering Research Center of Paper and Pollution Control, South China University of Technology, Guangzhou, 510640, China
国际会议
广州
英文
597-599
2010-11-08(万方平台首次上网日期,不代表论文的发表时间)