文献类型：会议论文

英文题名：STUDY ON THE SODA-AQ SEMI-CHEMICAL PULPING PROPERTIES OF CATALPA BUNGEI C. A. MEY. LOP WOOD

作者：Wang, Junhui[1] Zhang, Hongjie[2] Shi, Shulan[2] Hu, Huiren[2] Zhai, Wenji[3] Wang, Qiuxia[3]

第一作者：王军辉

通信作者：Wang, JH[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, State Forestry Adm, Key Lab Tree Breeding & Cultivat, Beijing 100091, Peoples R China;[2]Tianjin Univ Sci & Technol, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China;[3]Nanyang Forestry Res Inst, Nanyang 473015, Peoples R China

会议论文集：16th International Symposium on Wood, Fibre and Pulping Chemistry (ISWFPC)

会议日期：JUN 08-10, 2011

会议地点：Tianjin, PEOPLES R CHINA

语种：英文

外文关键词：Catalpa bungei C. A. Mey.; lop wood; chemical components; semi-chemical pulping; pulping properties

年份：2011

摘要：Catalpa bungei C. A. Mey. is one kind of traditional planting and rare timber materials, and its trunk part is mainly used for the industry of timber processing. The lop wood of Catalpa bungei C. A. Mey. may be used as one kind of new fiber sources. In this study, the chemical components and the soda-anthraquinone (AQ) semi chemical pulping properties of three different clone Catalpa bungei C. A. Mey. lop woods with two different diameters were determined. The results show that the lop wood with big diameter has lower contents of 1% NaOH extractive and alcohol-benzene solubles than the lop wood with small diameter. The Klason lignin content of lop wood of 8401 is higher than others, and the content of acid soluble lignin is quite similar for these six samples. The optimum alkali pretreatment for the lop woods with big diameter and small diameter is 11% NaOH and 0.1% AQ. The pulp yield of the lop wood with big diameter is better than that of the lop wood with small diameter (55%similar to 60% vs. 50%similar to 56%); the kappa number is about 170 similar to 180. The physical properties of lop wood with big diameter are better than that of the lop wood with small diameter, especially for the semi-chemical pulp of lop wood of 8402.