Immobilization of Imidazolium Hydrogen Sulphate on Silica as Efficient Ionic Liquid for Catalytic Acetylization of Glycerol

International Journal of Applied Chemistry

© 2018 by SSRG - IJAC Journal

Volume 5 Issue 3

Year of Publication : 2018

Authors : Salihu Abdullahi Kiyawa, Sama’ila Mu’azu Batagarawa, Amina Salihi Bayero and Yahaya Aliyu Danmaraya

10.14445/23939133/IJAC-V5I3P102

How to Cite?

Salihu Abdullahi Kiyawa, Sama’ila Mu’azu Batagarawa, Amina Salihi Bayero and Yahaya Aliyu Danmaraya, "Immobilization of Imidazolium Hydrogen Sulphate on Silica as Efficient Ionic Liquid for Catalytic Acetylization of Glycerol," SSRG International Journal of Applied Chemistry, vol. 5,  no. 3, pp. 5-9, 2018. Crossref, https://doi.org/10.14445/23939133/IJAC-V5I3P102

Abstract:

Imidazole was immobilized onto silica via (3-chloropropyl) triethoxysilane. Characterization of the catalyst by TEM showed some orderly arrangement of pores similar to that of MCM-41 structure with an average diameter of 2.80 nm. Similarly, characterizations using CHN, FTIR and EDS analysis indicated successful immobilization of the imidazole on the silica matrix. This was later modified with H2SO4 to form RHA-IMIHSO4 ionic liquid. The catalytic activity of the catalyst was tested in the acetylization of glycerol to achieve a conversion of 75 %. The products obtained were 1,3-dioxane and 1,3-dioxolane.

Keywords:

Rice husk, imidazole, acetylization, glycerol, dioxane

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