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首页> 外文会议>International Mechanical Pulping Conference; 20070506-09; Minneapolis,MN(US) >Improving TMP Rejects Refining Through Alkaline Peroxide Pre-treatment for Value-Added Mechanical Papers
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Improving TMP Rejects Refining Through Alkaline Peroxide Pre-treatment for Value-Added Mechanical Papers

机译：通过碱性过氧化物预处理提高增值机械纸的TMP废料率

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We conducted pilot plant trials to clarify the effect of alkaline peroxide pretreatment on TMP rejects. Different alkaline and peroxide charges were applied to the rejects before refining. The study showed that a 2.2% total alkali charge was not sufficient to achieve noticeable energy reduction or physical property improvement. However, at a total alkali charge of 5.2%, alkaline peroxide pretreatment reduced the specific refining energy by 20% to a given freeness, and increased pulp density and tensile strength, most likely as a result of increased fibre flexibility and conformability. With a peroxide charge of 2.9%, the brightness of the refined rejects reached 72%. However, alkaline peroxide pretreatment decreased light scattering and pulp yield.
机译：我们进行了中试工厂试验，以阐明碱性过氧化物预处理对TMP废品的影响。在精炼之前，将不同的碱性和过氧化物装料施加到废料上。研究表明，总碱含量为2.2％不足以实现显着的能耗降低或物理性能改善。但是，在总碱含量为5.2％的情况下，碱性过氧化物预处理可将特定的精炼能量降低20％至给定的游离度，并增加纸浆密度和拉伸强度，这很可能是纤维柔韧性和顺应性提高的结果。使用2.9％的过氧化物装料，精炼废料的亮度达到72％。但是，碱性过氧化物预处理降低了光散射和纸浆得率。

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