麦草APMP浆高白度漂白的研究[Ⅰ]——过氧乙酸的应用  

A study on high-whiteness bleaching of APMP wheat straw pulp (Ⅰ)——The application of peracetic acid

作　　者：李红斌[1] 房桂干[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,南京210042

出　　处：《中华纸业》2008年第22期26-30,共5页China Pulp & Paper Industry

基　　金：江苏省科技攻关"农业秸秆剩余物高效清洁制浆产业化技术"(BE2006333)

摘　　要：介绍了麦草APMP制浆工艺,优化了过氧乙酸漂白的条件,研究了麦草原料的贮存时间对漂白的影响。研究结果表明:过氧乙酸最优使用条件为:用量在1.0%以内,时间120min,pH维持在5,漂白浆浓20%;与两段5.0%过氧化氢组合对麦草化学机械浆进行漂白,最高白度能够达到72.38%ISO;贮存时间越长原料中的木素老化现象就越严重,使得化学药品对木素的发色基团的进攻变得越来越困难,所以原料贮存时间越短对麦草APMP浆漂白越有利。Alkali proxide mechanical pulping process of wheat straw was introduced, the peracetic acid bleaching conditions were optimized and effect of different storage-time wheat straw material on bleaching was studied. The results showed that the optimal condition of peracetic acid applied for wheat straw APMP pulp bleaching was as follows: peracetic acid dosage below 1.0%, bleaching time 120min, pH 5, pulp consistency 20%; the greatest final pulp brightness could be 72.38%ISO when combined with two stage 5.0% H2O...

关 键 词：麦草化学机械浆 过氧乙酸 过氧化氢 漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]