硫化钠预处理制浆残余木质素的化学结构特性  

Chemical Structure Characteristics of Residual Lignin from Sodium Sulfide Pretreatment Kraft Pulping

作　　者：金永灿[1] 李忠正[1] 

机构地区：[1]南京林业大学化学工程学院,南京210037

出　　处：《纤维素科学与技术》2000年第4期44-52,共9页Journal of Cellulose Science and Technology

摘　　要：用化学和波谱分析研究了硫化钠预处理硫酸盐制浆中残余木质素的化学结构特性。结果表明 ,硫化钠处理能促进硫与木片中木质素的结合 ,而甲氧基的含量有所下降。与对照硫酸盐制浆相比 ,预处理条件下木质素的缩合程度较低 ,经过蒸煮后残余木质素的缩合程度有较大的提高。Residual lignins from sodium sulfide pretreatment kraft pulping were studied by chemical and spectral methods.Sodium sulfide pretreatment can promote sulfur combining chemically with lignin.The amount of methoxyl group decreases after wood chip being treated by sodium sulfide.Under the condition of pretreatment,the condensation degree of lignin is relatively lower,compared with controlled kraft pulping.

关 键 词：纸浆 硫化钠预处理 残余木质素 硫酸盐制浆 

分 类 号：TQ351.013[化学工程] TS749[轻工技术与工程—制浆造纸工程]