α-异佛尔酮异构制备β-异佛尔酮的研究  

Preparation of β-isophorone by catalyzed isomerization of α-isophorone

作　　者：龙姝[1] 曹忠[1] 李传生[1] 吕品[1] 骆跃[1] 黄茜茜[1] 

机构地区：[1]长沙理工大学化学与生物工程学院,湖南长沙410114

出　　处：《食品与机械》2009年第1期14-17,共4页Food and Machinery

基　　金：国家自然科学基金项目(编号:20775010);湖南省教育厅科学研究基金项目(编号:06C098;08B004);湖南省科技厅科技计划项目(编号:2008FJ3014);湖南省研究生科研创新基金资助项目

摘　　要：以α-异佛尔酮为原料,在己二酸催化异构下,制备β-异佛尔酮,并优化催化异构化的工艺条件。试验发现,当采用长度为200cm的玻璃微珠填充柱,馏出液滴出速度为20滴/min时,馏出液中β-异佛尔酮含量可达到99.3%,经回收计算产率可达到95%。因此,精馏柱的分离效率、馏出液的出液速度是影响异构化效率的最主要因素,而反应温度、催化剂用量对异构化效率的影响则比较有限。β - isophorone was prepared by catalyzed isomerization of α - isophorone with hexanedioic acid, and its isomerization conditions were also optimized. When the glass micro - beads packed column was adopted with a length of 200cm and the dropping speed of distillate was controlled as 20 drops per min in the experiment, the amount of β - isophorone in the distillate reached 99. 3%, and the corresponding productive rate can reached 95%. It was suggested that the rectification efficiency of the column and distillate dropping speed were the key factors affecting the isomerization reaction instead of reaction temperature and catalyst dosage.

关 键 词：异佛尔酮 异构化 制备 精馏 

分 类 号：TQ234.2[化学工程—有机化工]