一种具有高度悬浮分散性能的氧化铝纳米管基酯交换催化剂及其制备方法和应用
Alumina nanotube-based transesterification catalysts were prepared by impregnating potassium oxide on the surface of alumina nanotubes. This solved the problems of easy precipitation and decreased activity of transesterification catalysts in the reaction solution, and enabled efficient transesterification reactions and catalyst reuse, thereby improving the activity and stability of the catalyst.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANGZHOU INST OF CHEM & CHEM ENG NANJING UNIV
- Filing Date
- 2023-11-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing transesterification catalysts have poor solubility in reaction solutions, are prone to precipitation and scaling, and their activity decreases after repeated use, affecting catalyst life. They are also prone to clogging pipelines. Furthermore, traditional heterogeneous catalysts have poor thermal stability and low selectivity.
Using alumina nanotubes as a carrier, and by impregnating their surface with the active component potassium oxide, an alumina nanotube-based transesterification catalyst with high suspension and dispersion performance is prepared by utilizing the acid-base synergistic effect. This improves the catalyst's activity and dispersion effect, and achieves good contact between the catalyst and the reactants.
It improves the transesterification reaction rate, reduces the amount of catalyst used, extends the catalyst life, and the catalyst can be reused. It has a stable structure, is not easily lost due to trace amounts of moisture, and has good mass transfer effect and suspension dispersion performance.
Smart Images
Figure CN117563579B_ABST