Sn-W复合金属氧化物催化环戊酮Baeyer-Villiger氧化制备δ-戊内酯
郭鲁玉 , 樊志鹏 , 张世鹏 , 靳海波 , 马磊
现代化工 ›› 2026, Vol. 46 ›› Issue (5) : 156 -162.
Sn-W复合金属氧化物催化环戊酮Baeyer-Villiger氧化制备δ-戊内酯
Catalytic Baeyer-Villiger oxidation of cyclopentanone to δ-valerolactone over Sn-W composite metal oxides
Baeyer-Villiger(B-V)氧化法是环酮制备酯类最常用的方法之一,δ-戊内酯由于在许多方面都有着重要作用,因此开发B-V氧化环戊酮生产δ-戊内酯具有重要的意义。采用共沉淀的方法制备了一系列Sn-W复合金属氧化物催化剂用于催化环戊酮氧化制δ-戊内酯。首先采用多种表征手段对催化剂的结构进行分析,发现催化剂结构为SnO2的四方晶系以及WO3的三斜晶系,形态为不规则粒状或块状集合体。接着,将上述催化剂用于催化环戊酮氧化制δ-戊内酯反应时,发现催化剂Sn-W-2-800有很好的催化性能。最后在此基础上进一步进行了反应条件优化,得到最优条件为:双氧水投加量为理论值的2.1倍,酮(环戊酮)与酸(丙酸)摩尔比为1∶20.25,催化剂投加量为8.8 g/L,反应时间为5 h,反应温度56℃。在此条件下,环戊酮转化率为81.47%,δ-戊内酯选择性为63.83%,收率达到52%。
The Baeyer-Villiger oxidation is one of the most commonly used methods for the preparation of esters from cyclic ketones.δ-Valerolactone plays a significant role in many aspects,thus the development of a B-V oxidation of cyclopentanone to produce δ-valerolactone is of great significance.In this paper,a series of Sn-W composite metal oxide catalysts were prepared by the co-precipitation method for the oxidation of cyclopentanone to δ-valerolactone.Firstly,the structure of the catalyst was analyzed by various characterization methods,and it was found that the catalyst structure was a tetragonal crystal system of SnO2 and a triclinic crystal system of WO3,and the morphology was irregular granular or massive aggregates.Subsequently,when the above catalysts were used to catalyze the oxidation of cyclopentanone to δ-valerolactone,it was found that the catalyst Sn-W-2-800 had excellent catalytic performance.Finally,on this basis,the reaction conditions were further optimized,and the optimal conditions were obtained as follows:the addition amount of hydrogen peroxide was 2.1 times the theoretical value,the molar ratio of ketone (cyclopentanone) to acid (propionic acid) was 1∶20.25,the catalyst addition amount was 8.8 g/L,the reaction time was 5 h,and the reaction temperature was 56℃.Under these conditions,the conversion rate of cyclopentanone was 81.47%,the selectivity of δ-valerolactone was 63.83%,and the yield reached 52%.
Baeyer-Villiger氧化反应 / Sn-W复合金属氧化物催化剂 / 环戊酮 / δ-戊内酯
Baeyer-Villiger oxidation reaction / Sn-W composite metal oxide catalyst / cyclopentanone / δ-valerolactone
| [1] |
何红振, 宋新巍, 许福胜, |
| [2] |
|
| [3] |
|
| [4] |
中国石化有机原料科技情报中心站. 濮阳迈奇科技公司开发的δ-戊内酯合成新工艺实现产业化应用[J]. 石油炼制与化工, 2018, 49(2):54. |
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
徐榕徽, 王国胜. 以糠醛为原料的δ-戊内酯合成及应用研究进展[J]. 生物质化学工程, 2020, 54(1):60-66. |
| [16] |
|
| [17] |
|
| [18] |
吴培培. 双氧水氧化环戊酮合成δ-环戊内酯的工艺研究[D]. 郑州: 郑州大学, 2015. |
| [19] |
朱万坤. H2O2间接催化氧化制备δ-环戊内酯的新工艺研究[D]. 郑州: 郑州大学, 2014. |
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
/
| 〈 |
|
〉 |