单 位：
中南林业科技大学材料科学与工程学院;岳阳职业技术学院基础部中草药综合利用重点实验室;南华大学教务科
摘 要：
采用微波辅助SO42--TiO2/黏土固体酸提取稻草木质素,探讨了固体酸质量分数、微波处理时间、微波功率、液固质量比对木质素提取率的影响。结果表明,固体酸质量分数5.1%、微波处理时间51 min、微波功率388 W、液固质量比10∶1为较优的制备工艺。在该工艺条件下,木质素的提取率为70.15%,比相同工艺条件下常规提取法的提取率提高了21.62%。
译 名：
Response Surface Optimization of Microwave assisted Lignin Extraction from Rice Straw with SO_4~(2-)-TiO_2/Clay Solid Acid
作 者：
YU Xian-chun1,2,LI Xiang-su3,GONG Zheng-wu2(1.Key Lab of Chinese Herbal Medicine Multipurpose Use,Basis Department,Yueyang Vocational & Technical College,Yueyang 414000,Hunan,China;2.College of Material and Engineering,Central South University of Forestry and Technology,Changsha 410004,China; 3.Academic Administration,University of South China,Hengyang 421002,Hunan,China)
关键词：
rice lignin;microwave treatment;solid acid;process optimization
摘 要：
Lignin was extracted from rice straw via microwave treatment with SO42——TiO2/clay solid acid.The effects of mass fraction of solid acid,reaction time,microwave power and liquid-solid ratios on the lignin yield were discussed.The experimental results showed that the optimal condition was as follow,mass fraction of solid acid,5.1%;Reaction time,51 min;Microwave power,388 W;And liquid-solid ratios,10∶1.Under this condition,the lignin yield could reach to 70.15%;Increased by 21.62% compared with that obtained by the conventional methods with the same condition.
