麦草碱性亚硫酸钾—蒽醌法制浆工艺和脱木素动力学  

Alkaline Potassium Sulfite-AQ Pulping of Wheat Straw and Its Kinetics

作　　者：龙柱[1] 徐永英[2] 李志清 

机构地区：[1]天津轻工业学院,天津300222 [2]西北轻工业学院,咸阳712081 [3]新布伦瑞克大学

出　　处：《中国造纸学报》1997年第1期10-17,共8页Transactions of China Pulp and Paper

摘　　要：对麦草碱性亚硫酸钾法制浆特性及其脱木素反应历程和动力学进行了研究。实验结果表明，麦草碱性亚钾-AQ法蒸煮较优工艺条件为：总碱量12％（NaOH计），碱比＝0．85，AQ用量0．1％，最高蒸煮温度170℃，液比＝1∶6，保温时间120min。在动力学研究中，在反应温度和制浆药液浓度基本恒定的情况下，得出其脱木素动力学表达式。同时研究了其脱木素反应历程。A study was conducted on the kinetics and the mechanism of alkaline potassium sulfite-anthraquinone pulping of wheat straw. The optimal alkaline potassium sulfite-AQ cooking conditions for wheat straw were:alkali charge 12% (calculated as NaOH), alkali ratio 0. 85, AQ charge 0. 1 %, straw-to-liquor 1 : 6 and 2 hours at 170℃. Reaction temperature and pulping chemicals concentrations were held essentially constant in kinetic experiments. The pulping mechanism was studied and a delignification expression was proposed.

关 键 词：脱木素 麦草 制浆工艺 蒸煮温度 AQ 制浆特性 亚硫酸 蒽醌法 碱性 反应温度 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] TS743