本文二维码信息
二维码(扫一下试试看!)
蔗渣氧碱浆的臭氧漂白研究
Study on Ozone Bleaching of Bagasse Oxygen Alkaline Pulp
收稿日期:2021-04-08  
DOI:10.11980/j.issn.0254-508X.2021.08.005
关键词:  蔗渣  氧碱浆  臭氧漂白  过氧化氢漂白  TCF漂白
Key Words:bagasse  oxygen alkaline pulp  ozone bleaching  hydrogen peroxide bleaching  TCF bleaching
基金项目:
作者单位邮编
吴祖东 云南省造纸产品质量监督检验站云南昆明650034 650034
陈克利 昆明理工大学制浆造纸工程研究中心云南昆明650500 650500
朱维 云南省造纸产品质量监督检验站云南昆明650034 650034
俞华峰 云南省造纸产品质量监督检验站云南昆明650034 650034
连华阳 山东省造纸工业研究设计院山东济南250014 250014
孙海梅 山东省造纸工业研究设计院山东济南250014 250014
吴初柱 湖北富邦科技股份有限公司湖北武汉430200 430200
范青 鄂州市水文水资源勘测局 湖北鄂州436000 436000
摘要点击次数: 140
全文下载次数: 109
摘要:本研究对清洁的臭氧以及过氧化氢氧系漂白工艺的蔗渣氧碱浆漂白效果进行了探索与优化。结果表明,在浆浓40%、臭氧浓度为0.9 kg/(min·t)(以绝干浆计)、常温漂白10 min、复合酸用量1.5%、pH值2.5的条件下,可获得理想的臭氧漂白蔗渣氧碱浆。该浆在氧碱浆基础上,白度从58.6%提高到74.5%,增加15.9个百分点;黏度从827 mL/g下降到780 mL/g,降低5.7%。最佳臭氧漂白条件下得到的纸浆再进行过氧化氢漂白或氧强化过氧化氢漂白,在纸浆黏度基本保持不变的条件下,纸浆白度达80%以上。
Abstract:In this study, it was explored and optimized the bleaching effects on bagasse oxygen alkaline pulp of clean ozone and oxygen bleaching processes with hydrogen peroxide. It was shown that the ideal ozone bleached bagasse oxygen alkaline pulp could be obtained under the conditions of the pulp concentration of 40%, ozone concentration of 0.9 kg/(min·t) (calculated as absolute dry pulp), bleaching for 10 min at room temperature, compound acid dosage of 1.5%, and pH value of 2.5. Compared with original oxygen alkaline pulp, the whiteness of ozone bleached bagasse oxygen alkaline pulp increased from 58.6% to 74.5%, with an increase of 15.9 percentage points, and the viscosity of it decreased from 827 mL/g to 780 mL/g, with a decrease of 5.7%. When the viscosity of the pulp basically unchanged, the ozone bleaching pulp obtained under optimum conditions was further bleached with hydrogen peroxide or oxygen enhanced hydrogen peroxide, whose whiteness could be reached more than 80%.
查看全文  查看/发表评论  下载PDF阅读器