预处理硫酸盐制浆溶出木质素的结构特性  

Structure Characteristics of Dissolved Lignin from Na 2S 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,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2000年第6期17-21,共5页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家"九五"攻关项目! (96 -0 11-0 1-0 8)

摘　　要：用元素分析、1 H -NMR和1 3C -NMR波谱比较了硫化钠预处理硫酸盐制浆和常规硫酸盐制浆溶出木质素的化学结构。结果表明 ,预处理制浆溶出木质素的硫元素与甲氧基含量及脱木质素反应均不同于常规硫酸盐制浆。Chemical structure characteristics of dissolved lignins from sodium sulfide pretreatment and control kraft pulping were studied by the elemental analysis, 1H-NMR and 13 C-NMR spectra. The results indicate that the contents of sulfur and methoxyl group and the delignification process of sodium sulfide pretreatment kraft pulping are different from those of control pulping. The lignin removal reaction of sodium sulfide pretreatment kraft pulping has its own special rule.

关 键 词：硫化钠预处理 硫酸盐制浆 溶出木质素 结构特性 

分 类 号：TS743[轻工技术与工程—制浆造纸工程]