期刊论文

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

中文

食品与机械

1003-5788

2009

25

1

14-17

10.13652/j.issn.1003-5788.2009.01.002

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.

本校为第一机构

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200 cm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 isome...