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, J.|[a000524395e299384f45a]王佳;[a000564f1dd8d32b0d01a]王珏;[a0005e07c3aad9be2a207]王佳;[a00055b87fc60d72939d0]王婧;

机构：[1] Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation, Beijing, 100091, China; [2] Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, China; [3] Nanyang Forestry Research Institute, Nanyang, 473015, China

会议论文集：16th International Symposium on Wood, Fiber and Pulping Chemistry - Proceedings, ISWFPC

会议日期：June 8, 2011 - June 10, 2011

会议地点：Tianjin, China

语种：英文

外文关键词：Timber - Lignin - Ketones - Pulp

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 ofters, 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%～60% vs. 50%～56%); the kappa number is about 170-180. 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.