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造纸污泥有机改性制备磨浆助剂的方法 被引量:4

Preparation of Pulp Refining Additive from Paper Sludge through Organic Modification
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摘要 为实现造纸污泥的资源化处理,探索以其为原料制备高附加值产品——磨浆助剂的方法,即将造纸污泥进行适当的预处理,再进行碱化反应、醚化反应以及中和、洗涤等后处理。反应条件为m(造纸污泥)∶m(氢氧化钠)∶m(氯乙酸钠)=0.9∶0.8∶1.15;碱化温度为40℃,90min;醚化温度为60℃;醚化时间为3h。对有机改性产物进行了红外光谱、X射线衍射、X射线荧光、光学显微和扫描电镜分析和表征。对改性产物作磨浆助剂进行了应用性评价:在相同磨浆游离度的情况下,可以明显降低磨浆能耗;改性物在相同磨浆功率的情况下,可以大幅度提升成纸内聚力。该方法生产成本低,具有良好的经济效益和市场前景。 This paper describes the reuse of paper sludge, an industrial solid waste, for the preparation of pulp refining additive through organic modification. The process includes pretreatment, basification, etherification and post-treatment. The optimal preparation condition is : m ( paper sludge ) : m ( sodium hydroxide ) : m ( sodium chloroacetate) = 0. 9 : 0.8 : 1.15; basification at 40 ℃ ,90 min; etherification at 60℃ , 3 hours. Fourier transform infrared (FTIR), X-ray diffraction spectra (XRD) , X-ray fluorescence (XRF) , optical microscopy and scanning electron microscope (SEM) are adopted to analyze and characterize the product. Furthermore, application results indicate that the product can reduce pulp refining energy consumption under the same pulp freeness or improve paper cohesion under the same pulp refining energy consumption. The technology that is characterized by low production cost can bring good economic benefit and strong market competition ability.
出处 《北京大学学报(自然科学版)》 EI CAS CSCD 北大核心 2010年第3期379-384,共6页 Acta Scientiarum Naturalium Universitatis Pekinensis
基金 国家水体污染控制与治理科技重大专项(20082x07212-004)资助
关键词 造纸污泥 有机改性 磨浆助剂 paper sludge organic modification pulp refining additive
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参考文献14

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二级参考文献21

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