硫酸盐浆氧脱木素过程中草酸根的生成规律  

Oxalate Formation Rules During Oxygen Delignification of Kraft Pulp

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

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

出　　处：《华南理工大学学报（自然科学版）》2012年第9期38-41,68,共5页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(31100438;21006034);华南理工大学中央高校基本科研业务费专项资金资助项目(2011ZM0096);制浆造纸工程国家重点实验室开放基金资助项目(201154);中国博士后科学基金资助项目(20110490890)

摘　　要：探讨了南方松硫酸盐浆氧脱木素工艺条件对草酸根生成的影响,及草酸根的生成与卡伯值的关系,并根据此关系建立了氧脱木素过程中草酸根生成的数学预测模型.结果表明:随着氧脱木素的进行草酸根的含量逐渐增加,提高温度和增加用碱量均可使草酸根含量增加,但氧压对草酸根生成基本不会产生影响;所建立模型的预测值和测定值的线性相关系数为0.969,预测的准确度较高,可用于预测给定纸浆氧脱木素废液中草酸根的含量.In this paper, the effects of the oxygen delignification of southern pine Kraft pulp on the oxalate formation were investigated, and the relationship between the oxalate formation and the Kappa number was also discussed. Then, according to this relationship, a mathematical model was constructed to predict the oxalate content during the oxygen delignification. The results show that the oxalate content gradually increases during the oxygen delignification and increases with the temperature and the alkali dosage, while the oxalate formation is not affected by the oxygen pressure, and that, for the proposed model, the linear correlation coefficient between the predicted value and the measured one is 0. 969, which means that the prediction accuracy is higher, so it can be used to pre- dict the oxalate content in the oxygen delignification effluent of a given pulp.

关 键 词：硫酸盐浆 草酸根 氧脱木素 预测模型 

分 类 号：TS713[轻工技术与工程—制浆造纸工程]