基于1,4-二氧六环的玉米秸秆木质素提取工艺研究OA

This paper conducted an in-depth study on the extraction process of lignin from corn straw.The experi-ment utilized 1,4-dioxane as the solvent and effectively enhanced the extraction rate of lignin by optimizing key pa-rameters such as extraction temperature,time,and liquid-to-solid ratio.Using response surface analysis,the optimal process conditions for extracting lignin from corn straw using 1,4-dioxane as the solvent were determined as follows:temperature of 160℃,liquid-to-solid ratio of 22∶1(V∶m),and extraction time of 2.5 hours.Under these condi-tions,the yield of lignin from corn straw was 13.41％.Compared to other traditional processes,this extraction process was not only simple to operate and highly efficient,but also could effectively maintain the natural structure of lignin,providing a good foundation for the high-value utilization of lignin.