麦草APMP浆高白度漂白的研究Ⅱ——硼氢化钠的应用  

A study on high-whiteness bleaching of APMP wheat straw pulp (Ⅱ)--The application of sodium borohydride

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24期44-47,共4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,优化了硼氢化钠还原漂白的条件,研究了麦草原料的贮存时间对硼氢化钠还原的影响。研究结果表明:硼氢化钠最优使用条件为:用量1.0%以内,时间60min,pH10～11,漂白浆浓10%;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73.98%ISO;原料贮存时间越短对麦草APMP浆漂白越有利。APMP process of wheat straw was introduced, the sodium borohydride bleaching conditions was optimized and effect of different storage-time of wheat straw material on bleaching was studied. The results showed that the optimal application conditions of sodium borohydride was as follows： sodium borohydride dosage below 1.0%, bleaching time 60min, pH 10-11, bleached pulp consistency 10%; the max final pulp brightness could be 73.98% ISO under the sodium borohydride optimal condition combined with two stage 5.0% H2O2 of wheat straw chemical mechanical pulp; the shorter storage-time material, the more favorable to wheat straw APMP bleaching.

关 键 词：麦草化学机械浆 硼氢化钠 过氧化氢 漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] TS743.3