南方松碱法制浆过程中碳酸根生成规律的研究  

Carbonate Formation in Alkaline Pulping of Southern Pine

作　　者：李海龙[1] 柴欣生[1] 詹怀宇[1] 付时雨[1] 刘梦茹[2] Nikolai DeMartini 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [2]华南理工大学工业技术研究总院,广东广州510640 [3]Institute of Paper Science and Technology,Georgia Institute of Technology

出　　处：《中国造纸》2010年第9期7-10,共4页China Pulp & Paper

基　　金：华南理工大学"优秀博士学位论文创新基金"资助课题

摘　　要：以南方松为原料研究了碱法蒸煮过程中碳酸根的形成规律。研究结果发现,蒸煮时间(或H-因子)、初始碱度、蒸煮黑液中糖和溶解木素的含量与碳酸根的形成有着密切的联系。随着蒸煮过程的进行,黑液中碳酸根的含量逐渐增加,相同原料烧碱法蒸煮生成的碳酸根要多于硫酸盐法。高的碱度能够导致更多的碳酸根生成,控制碱度可以有效地减少碳酸根的生成。此外,研究还发现,在碱法蒸煮过程中木素、纤维素以及半纤维素的降解都可以产生碳酸根。In this work,the carbonate formation during alkaline pulping of southern pine was studied.The relationships between the carbonate content and the pulping time（or H-factor）,initial alkalinity and dissolved lignin were investigated during alkaline pulping processes. The results showed that the carbonate content in black liquor increases during alkaline pulping processes.The soda cooking produces more carbonate than the kraft cooking.Higher alkalinity leads to higher carbonate content in the initial stage of the cooking.The carbonate can be greatly reduced if a controlled alkalinity in the initial pulping liquor is applied.Further investigation showed that carbonate can be produced due to the degradation of lignin,cellulose and hemicellulose during alkaline pulping.

关 键 词：碳酸根 碱法制浆 南方松 木素 

分 类 号：TS743.11[轻工技术与工程—制浆造纸工程]