机构地区: 华南师范大学化学与环境学院化学系
出 处: 《离子交换与吸附》 1992年第4期325-328,共4页
摘 要: 本文研究了用蛇笼树脂分离粗木质素溶液中的小分子盐,用互贯磺酸树脂分离粗木质素溶液中的还原糖,以及用大孔和凝胶磺酸树脂对木质素分级作用。此外还研究了用离子交换法测定木质磺酸盐的磺化度和有木质磺酸盐存在时小分子盐含量测定,都得到了满意结果。 The separations of salts and reducing sugar from raw lignin solution respectively by 'snake in cage' resin and interpenetrating sulfonic acid resin were studied. The fractionation of lignin by gel and macroporous sulfonic acid resin, the determination of sulfonation degree of lignin and content of salts in the presence of lignin sulfonate by ion exchange method also were investigated, satisfactory results are achieved.
领 域: [环境科学与工程]