乙二醛在马尾松硫酸盐浆漂白中的应用  

Application of Glyoxal in Chlorine Dioxide Bleaching of Masson Pine Kraft Pulp

作　　者：刘杰[1] 韩卿[1] 

机构地区：[1]陕西科技大学造纸工程学院,陕西西安710021

出　　处：《纸和造纸》2010年第9期38-40,共3页Paper and Paper Making

摘　　要：研究乙二醛在马尾松硫酸盐浆漂白中的各个影响因素,即乙二醛的用量、初始pH值、漂白时间以及温度对ClO2漂段的影响。结果表明,乙二醛在硫酸盐马尾松浆二氧化氯漂白段的适宜条件是:浆浓10%,ClO2用量1.5%,乙二醛用量1.2%,温度70℃,初始pH值2.5～3.0,时间90min,纸浆白度可以达到74.45%ISO。通过不同的添加方案对D1ED2P漂白的影响,在D2段添加乙二醛比D1段添加效果要好,比不添加助剂漂白时高3.36%ISO,纸浆白度可以达到88.36%ISO。The effects of glyoxal on the bleaching of masson pine kraft pulp, such as dosage of glyoxal, initial pH, reaction time and temperature were investigated in this paper. The results showed the optimal conditions of bleaching were： pulp consistency 10%, C102 1.5%, glyoxal 1.2%, temperature 80~C, initial pH value of 2.5-3.0, time 90min. Pulp brightness could reach 74.45%ISO in that optimal condition. By adding different options on the D^ED2P bleaching, adding the glyoxal in the D2 was better than Dl, comparing with the chlorine dioxide bleaching without addiitives, the brightness of pulp increased 3.36% ISO, pulp brightness could reach 88.36%ISO.

关 键 词：二氧化氯漂白 马尾松 硫酸盐浆 乙二醛 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]