常压下多聚磷酸法脱除麦草木素的尝试  

A trial on delignification of wheat straw with poly-phosphoric acid at atmospheric pressure

作　　者：马英辉[1] 丁慧 卢美欢[1] 王联结[3] 李利军[1] 

机构地区：[1]陕西省微生物研究所,西安710043 [2]西安市产品质量检验所,西安71007 [3]陕西科技大学,西安710021

出　　处：《中华纸业》2012年第2期30-33,共4页China Pulp & Paper Industry

摘　　要：采用常压低温多聚磷酸法脱除麦草木素。经初步探讨,最佳条件为多聚磷酸浓度66%(以P2O5计),处理温度50℃,时间55min。处理后木素脱除率为79.4%,达到实验理论值的97%,纤维素损失率为21.6%。通过红外光谱对纤维素进行了分析。This research focuses on removing the wheat straw lignin with po[y-phosphoric acid at atmospheric pressure and low temperature. The results show that the optimal conditions are as follows： concentration of poly-phosphoric acid 66% （based on P205）, treatment temperature 55°C and reacting time 55min. After treatment by poly-phosphoric acid, the delignification rate reaches 79.4%, accounting 97% of experimental theoretical rate, with the loss rate of cellulose being 21.6%. The cellulose was analyzed by FI-IR.

关 键 词：多聚磷酸 乙醇 木素 麦草 

分 类 号：TS743.12[轻工技术与工程—制浆造纸工程]