| 两段氧化法制备竹浆粕 |
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| 引用本文： | 徐永建,唐凌云,朱振峰,岳晓鹏,田勇,张鼎军,易贻端,郭端华. 两段氧化法制备竹浆粕[J]. 纸和造纸, 2012, 0(1): 7-9 |
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| 作者姓名： | 徐永建 唐凌云 朱振峰 岳晓鹏 田勇 张鼎军 易贻端 郭端华 |
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| 作者单位： | 陕西科技大学造纸工程学院陕西省造纸技术及特种纸品开发重点实验室;陕西科技大学材料科学与工程博士后流动站;贵州赤天化集团有限责任公司 |
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| 基金项目： | 贵州省科技厅重大产业化项目“竹浆碱回收系统除硅关键技术研究及应用”;陕西科技大学博士科研启动基金项目(BJ08-03);陕西科技大学学科带头人培育计划项目和研究生创新基金项目资助 |
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| 摘 要： | 以漂白竹浆板为原料,采用两段氧化法制备竹浆粕,第一段为次氯酸盐氧化,第二段为过氧化氢氧化。通过正交试验,研究次氯酸盐氧化处理中各因素对竹浆粕得率、聚合度和α-纤维素的影响。实验得到次氯酸钠氧化的最佳氧化工艺为:有效氯用量3.5%(对绝干原料),初始pH值11.0,温度35℃,时间2h。最优工艺条件下,竹浆粕得率82.7%、聚合度576、α-纤维素含量92%。
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| 关 键 词： | 竹浆粕 α-纤维素 聚合度 次氯酸盐 氧化降解 |
Preparation of Dissolving Pulp by Two Oxidation Stages |
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| XU Yong-jian,TANG Ling-yun,ZHU Zhen-feng,YUE Xiao-peng,TIAN Yong,ZHANG Ding-jun,YI Yi-duan,GUO Duan-hua. Preparation of Dissolving Pulp by Two Oxidation Stages[J]. Paper and Paper Making, 2012, 0(1): 7-9 |
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| Authors: | XU Yong-jian TANG Ling-yun ZHU Zhen-feng YUE Xiao-peng TIAN Yong ZHANG Ding-jun YI Yi-duan GUO Duan-hua |
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| Affiliation: | 1.College of Papermaking Engineering,Shaanxi University of Science and Technology, Shaanxi Province of Key Lab of Paper Technology and Specialty Paper,Xi’an,710021 China; 2.Post-Doctoral Research Center of Material Science and Engineer,Shaanxi University of Science and Technology,Xi’an,710021 China; 3.Guizhou Chitianhua Group Co.,Ltd.,Chishui,564700 China) |
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| Abstract: | The bleached kraft bamboo pulp was used to prepare dissolving pulp by two oxidation stages.The first stage was hypochlorite(H),the second stage was hydrogen peroxide(P).The impacts of the hypochlorite oxidation conditions on yield, polymerization degree andα-cellulose of bamboo dissolving pulp were investigated by orthogonal experiments.e results showed that the optimized conditions for the hypochlorite stage are as follow:available chlorine loading 3.5%(based on dry raw materials), initial pH value 11.0,oxidation temperature 35℃,oxidation time 2 h.e yield,polymerization degree andα-cellulose content of bamboo dissolving pulp on optimized conditions are 82.7%,576 and 92%,respectively. |
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| Keywords: | bamboo dissolving pulp α-cellulose polymerization degree hypochlorite oxidative degradation |
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