作　　者： ; ;

机构地区： 华南理工大学

出　　处： 《中国造纸》 1994年第2期46-50,共5页

摘　　要： 探讨了蔗渣碱性亚硫酸钠法高得率化学浆的蒸煮工艺条件；当Ｎａ２ＳＯ３用量为１８％，ＮａＯＨ用量为３％，１６０℃时保温６０分钟，其得率为６３．８７％，ＫＭｎＯ４值为９．７４，未漂浆白度为５２．６３％ＩＳＯ；还分析了蒸煮过程木素的磺化和溶出特点及测定了碳水化合物的糖类组分溶出情况。 Bagasse AS chemical pulping was studied in order to get a high yield pulp with low permanganate number.A pulp with a yield of 63. 87% ,permanganate number 9. 74 and ISO brightness 52. 63% was prepared under the following optimum cooking conditions:Na2SO3 charge 18%, NaOH charge 3% and keeping at the max.temperature 160℃ for one hour.Lignin sulfonation rate,delignification rate and carbohydrate dissolution rate during AS cooking were investigated with SEM-EDAX and LC respectively. High yield of the pulp was attributed to the higher residual lignin in the secondery walls of the fibers and the lower dissolution of carbohydrate.IR results indicated that chromophores decreased, brightness increased and the premanganate number of the pulp decreamed with delignification rate increased during the cooking.

关 键 词： 蔗渣 亚硫酸钠 化学浆 制浆特性

领　　域： [轻工技术与工程]