| 白杨木粉碱性过氧化氢漂白条件的优化 |
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| 引用本文： | 刘俊劭,胡家朋,赵升云,张乐忠.白杨木粉碱性过氧化氢漂白条件的优化[J].生物质化学工程,2011,45(2):25-28. |
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| 作者姓名： | 刘俊劭 胡家朋 赵升云 张乐忠 |
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| 作者单位： | 武夷学院 福建省高校绿色化工技术重点实验室, 福建 武夷山 354300 |
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| 基金项目： | 福建省高校服务海西建设重点项目 |
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| 摘 要： | 研究了碱性条件下过氧化氢对杨木木粉的漂白工艺,探讨漂白温度、漂白时间、H2O2用量、pH值及偏硅酸钠用量对白度的影响。结果表明,过氧化氢对杨木木粉漂白的最佳工艺条件为:H2O2用量为40%,Na2SiO3·9H2O用量为8%,pH值为10~11,漂液温度在60~70℃,漂白时间40 min。该工艺对杨木粉进行漂白,最高白度可达到85%~90%(ISO),高于文献上报道的H2O2漂白白度。
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| 关 键 词： | 过氧化氢 漂白工艺 杨木木粉 白度 |
| 收稿时间： | 2010-10-20 |
Condition Optimization for Bleaching Poplar Wood Powder by Alkaline Peroxide |
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| LIU Jun-shao,HU Jia-peng,ZHAO Sheng-yun,ZHANG Le-zhong.Condition Optimization for Bleaching Poplar Wood Powder by Alkaline Peroxide[J].Biomass Chemical Engineering,2011,45(2):25-28. |
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| Authors: | LIU Jun-shao HU Jia-peng ZHAO Sheng-yun ZHANG Le-zhong |
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| Affiliation: | Wuyi University, The Key Laboratory for Green Chemical Engineering Technology of Fujian, Wuyishan 354300, China |
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| Abstract: | An alkaline peroxide bleaching process was employed for bleaching poplar wood powder(PWP)and effects on bleached PWP brightness of each parameters of bleaching condition s were investigated. The optimal bleaching conditions could be proposed as 27.5% H2O2 dosage of 40%(w/w), 90% Na2SiO3·9H2O dosage of 8%, the bleaching pH value of 10-11, the bleaching could be carried out at temperature of 60-70 ℃ for 40 min. The maximum brightness can reach 85%-90% (ISO) of poplar powder, higher than that reported in the literature H2O2 bleaching whiteness. |
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| Keywords: | peroxide hydrogen bleaching process poplar wood powder brightness |
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