在乙酸丁酯-水双相体系中玉米芯水解制备糠醛

摘要

以玉米芯为原料、硫酸铁为催化剂、乙酸丁酯为萃取剂，在乙酸丁酯-水双相体系中水解制备糠醛。考察了反应时间、催化剂浓度（硫酸铁溶液质量分数）、反应温度以及萃取剂与溶剂体积比对糠醛产率的影响，确定最佳工艺条件为：反应时间3.0 h，催化剂浓度10％，反应温度160℃，萃取剂与溶剂体积比为4，在此条件下，糠醛产率达到43.49％。%Using corncob as raw material,ferric sulfate as catalyst,butyl acetate as extraction agent,prepara-tion of furfural in butyl acetate-water biphasic system was studied.The effects of reaction time,catalyst concen-tration(mass fraction of ferric sulfate solution),reaction temperature and volume ratio of extraction agent to solvent on furfural yield were investigated.The optimum conditions were as follows:reaction time of 3.0 h,cat-alyst concentration of 10%,reaction temperature of 160 ℃,volume ratio of extraction agent to solvent of 4.Un-der above conditions,the yeild of furfural was 43.49%.