木薯秆液化树脂化工艺试验  

Study on liquefaction of Manihot esculenta stalk and resinification of liquefied products

作　　者：唐黎明 李远[2] 廖业洋[2] 覃琼坤[2] 符韵林[2] 

机构地区：[1]广西国有雅长林场,广西百色533209 [2]广西大学林学院

出　　处：《林业科技开发》2012年第6期85-88,共4页China Forestry Science and Technology

基　　金：广西自然基金重点项目(编号:2010GXNSFD013024);南宁市科技开发项目(编号:201102094G)

摘　　要：为实现木薯秆的有效利用,以苯酚为液化剂,硫酸为催化剂,对木薯秆进行液化和树脂化工艺研究。结果表明,木薯秆适宜的液化工艺为:液固比3.5∶1,液化温度160℃,硫酸用量7%,液化时间1.5 h;适宜的树脂化工艺为:甲醛与木薯秆液化产物摩尔比1.8,NaOH与木薯秆液化产物摩尔比0.3,缩聚温度90℃。In this paper,samples of Manihot esculenta stalk were liquefied by using phenol as liquefacient and sulfuric acid as catalyst.The processes of liquefaction and resinification of the liquefied products were studied.The results showed the optimum cassava stalk liquefaction process as follows： liquid-solid ratio of 3.5∶1,temperature of 160℃,catalyst content of 7% and reaction time of 1.5 h.The optimum resinification process is： molar ratio of formaldehyde to liquefied products： 1.8,molar ratio of NaOH to liquefied products： 0.3,polycondensation temperature： 95℃.

关 键 词：木薯秆 液化 树脂化 

分 类 号：TQ424.1[化学工程]