| 郭彩虹,杨泽广,李树木.7种进口阔叶木硫酸盐法制浆性能评估[J].中国造纸,2025,(8):124-129 |
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| 7种进口阔叶木硫酸盐法制浆性能评估 |
| Evaluation of Kraft Pulping Performance for Seven Types of Imported Hardwoods |
| 收稿日期：2025-03-06 修订日期：2025-03-19 |
| DOI：10.11980/j.issn.0254-508X.2025.08.016 |
| 关键词: 阔叶木片 漂白硫酸盐浆 ECF漂白 制浆性能 |
| Key Words:hardwood chips bleached kraft pulp ECF bleaching pulping performance |
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| 摘要:本研究对7种进口阔叶木（越南相思木、澳洲亮果桉、澳洲蓝桉、智利亮果桉、智利蓝桉、乌拉圭邓恩桉和泰国赤桉）进行硫酸盐法制浆及无元素氯（ECF）漂白，系统评估上述阔叶木的制浆及漂白性能。结果表明，蓝桉在制浆得率（超过55%）、氧漂效率（超过45%）等方面表现优异，亮果桉漂白浆的纤维长度较长（约0.94 mm），纤维粗度较细（约0.063 mg/m），制备纸张的抗张指数较好，超过99.0 N·m/g；因此，蓝桉和亮果桉均是较为理想的漂白硫酸盐法制浆原料。乌拉圭邓恩桉和泰国赤桉的制浆性能较差，需在工艺上进行调整以降低成本和提高效率。 |
| Abstract:This study investigated the kraft pulping and elemental chlorine-free （ECF） bleaching of seven imported hardwoods （Vietnamese acacia， Australian eucalyptus nitens， Australian blue eucalyptus， Chilean eucalyptus nitens， Chilean blue eucalyptus， Uruguayan Dunn eucalyptus， and Thai red eucalyptus）， systematically evaluating the pulping and bleaching performances of these hardwoods. The results showed that blue eucalyptus performed exceptionally well in terms of pulping yield （over 55%） and oxygen bleaching efficiency （over 45%）. Eucalyptus nitens bleached pulp had longer fiber length （approximately 0.94 mm） and finer fiber diameter （approximately 0.063 mg/m）， resulting in prepared paper with good tensile index， exceeding 99.0 N·m/g. Therefore， both blue eucalyptus and eucalyptus nitens were ideal raw materials for bleached kraft pulping. The pulping performance of Uruguayan Dunn eucalyptus and Thai red eucalyptus was poor， and process adjustments were needed to reduce costs and improve efficiency. |
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