微波辐射从花生壳中提取木质素的研究

Research on Extraction of Lignin from Peanut Shell by Microwave Radiation

探讨了用高沸点有机溶剂为萃取剂,在微波加热条件下提取花生壳中的木质素,得出最佳提取条件:微波辐射功率640 W,微波辐射时间45 min,萃取剂1,4-丁二醇水溶液(ω=90%),花生壳与1,4-丁二醇的水溶液之比(固液比)为1∶12(g∶mL).实验结果表明,该方法提取木质素,萃取率为38.4%,萃取时间短,萃取剂可重复使用,无废物排放,从而达到高效、无污染的效果,具有"节能减排"的意义.

This article has discussed with the high boiling organic solvent heats up for extracting lignin from peanut shell in the microwave radiation. Its optimum extraction conditions： Microwave radiation power 640 W, microwave Experimen radiation time 45 min, extractant of 1,4-butanediol solution （w=90 %）, solid-liquid ratio 1：12 （g/mL）. tal results show that the lignin extraction method, the extraction rate of 38.4 %,the extraction time is short, the extractant＂ of reusable,non-waste emissions. To achieve effficient,non-polluting effect of the＂energy saving emission reduction＂ of great significance.