Vanillin conversion by aldol condensation using hydrotalcite Mg-Al and modified-Y zeolite as heterogeneous catalysts

Nguyen Thi Thai, Nguyen Thi Minh Thu

Abstract


Mg-Alhydrotalcite, MgO-Al2O3 mixed oxides and modified-Y zeolite (sulfated Y zeolite and copper ion-exchanged Y zeolite) were prepared and characterized by XRD, EDX and XRF techniques. These materials were used as heterogeneous catalysts in aldol condensation of vanillin and acetone.The obtained results showed that the heterogeneous acid catalysts as modified-Y zeolites were more effective than the heterogeneous base catalysts as hydrotalcite Mg-Al and MgO-Al2O3 mixed oxides in aldol condensation reaction of vanillin. The highest conversion of vanillin was 95.5% when the reaction was carried out at 120oC in 5 hours, using sulfated Y zeolite. 


Keywords


Vanillin, aldol condensation, feruloyl methane, heterogeneous catalyst, modified-Y zeolite

Full Text:

PDF


DOI: https://doi.org/10.15625/2525-2518/59/1/15428 Display counter: Abstract : 66 views. PDF : 65 views.

Refbacks

  • There are currently no refbacks.


Bioteknologi Agrikultur

Index: Google Scholar; Crossref; VCGate; Asean Citation Index

Published by Vietnam Academy of Science and Technology