响应面法优化花生壳中高沸醇木质素提取工艺研究  

Optimization for high boiling solvent extraction of lignin from peanut shell with response surface method

作　　者：刘冬莲[1] 

机构地区：[1]唐山师范学院化学系,河北唐山063000

出　　处：《化学研究与应用》2011年第11期1566-1569,共4页Chemical Research and Application

摘　　要：以高沸点溶剂1,4-丁二醇水溶液为萃取剂,以粉碎的花生壳为原料,经煮沸提取木质素,并以固液比、提取时间和醇水体积比为考察因素,采用RSA响应面分析法确定木质素提取的最佳工艺参数,即固液比1∶11,提取时间4 h,醇水体积比95∶5,在此优化工艺下木质素提取率为23.8%。Lignin was extracted from the broken peanut shell with aqueous solution of 1,4-butanediol as extracting reagent by boiling extraction method.The single-factor extraction tests and response surface analysis were applied to determine the optimum technological condition.The optimum extraction conditions were as follows：the solid-liquid ratio（g/mL）was 1∶11,the extraction time was 4 hours,and the volume ratio of 1,4-butanediol/water was 95∶5.Under this condition,the extraction yield of lignin was 23.82%.

关 键 词：花生壳 木质素 1 4-丁二醇 响应面分析 

分 类 号：O636.2[理学—高分子化学]