| 氧漂玉米秆化学浆的光催化补充漂白 |
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| 引用本文： | 丁琳,李士勇,张彦波,杨汝男.氧漂玉米秆化学浆的光催化补充漂白[J].大连轻工业学院学报,2008,27(1):50-53. |
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| 作者姓名： | 丁琳 李士勇 张彦波 杨汝男 |
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| 作者单位： | 丁琳（大连工业大学,化工与材料学院,辽宁,大连,116600）;李士勇（大连工业大学,物资设备处,辽宁,大连,116034）;张彦波（大连工业大学,化工与材料学院,辽宁,大连,116600）;杨汝男（大连工业大学,化工与材料学院,辽宁,大连,116600） |
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| 摘 要： | 研究了除髓玉米秆亚铵法化学浆通过DTPA预处理及H2O2强化氧碱漂白后的光催化补充漂白.经氧碱漂白后,玉米秆化学浆的白度为68.7%(ISO),高锰酸钾值1.76,黏度922 mL/g.以EO为光敏剂的光催化补充漂白实验表明,最佳漂白工艺条件为用碱质量分数2.0%、浆浓1.0%、光敏剂质量分数0.3%、反应时间2.5 h.在此条件下,漂后浆的白度可达87%(ISO),高锰酸钾值0.43,黏度为738 mL/g.
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| 关 键 词： | 玉米秆 亚铵法 光催化漂白 |
| 文章编号： | 1674-1404(2008)01-0050-04 |
| 修稿时间： | 2007年10月23 |
Photocatalysis supplementary bleaching of oxygen-alkali bleached corn stalk pulp |
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| DING Lin,LI Shi-yong,ZHANG Yan-bo,YANG Ru-nan.School of Chemistry Engineering & Material,Dalian Polytechnic University,Dalian ,China.Photocatalysis supplementary bleaching of oxygen-alkali bleached corn stalk pulp[J].Journal of Dalian Institute of Light Industry,2008,27(1):50-53. |
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| Authors: | DING Lin LI Shi-yong ZHANG Yan-bo YANG Ru-nanSchool of Chemistry Engineering & Material Dalian Polytechnic University Dalian China |
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| Affiliation: | DING Lin1,LI Shi-yong2,ZHANG Yan-bo1,YANG Ru-nan11.School of Chemistry Engineering & Material,Dalian Polytechnic University,Dalian 116034,China,2.Department of Equipment |
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| Abstract: | The photocatalysis bleaching of ammonium sulfite corn stalk pulp was studied after DTPA pretreatment and oxygen-alkali bleaching with H2O2.The ammonium sulfite corn stalk pulp with brightness 68.7% ISO,kappa number 1.76 and viscosity 922 mg/L was obtained by oxygen-alkali bleaching.The optimum condition for photocatalysis supplementary bleaching was Eosin Y dosage 0.3%,NaOH dosage 2.0%,activation time 2.5 h and the pulp consistency 1.0%.The obtained pulp was brightness 87%(ISO),kappa number 0.43,viscosity 7... |
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| Keywords: | corn stalk strengthened oxygen-alkali bleaching photocatalysis bleaching |
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