MgO-SiO2 catalyst for aldol condensation of hydroxyacetone with 5-hydroxymethylfurfural in aqueous phase
Development of a new water resistant basic catalyst that promotes the aldol condensation of furfurals and ketones derived from the bio-oil in order to obtain compounds with carbon length in the range of transportation liquid fuels. The model compounds selected in the present work are hydroxyacetone with 5-hydroxymethylfurfural.
MgO-SiO2 efficiently catalyze the synthesis of C9-C15 from aldol condensation of hydroxyacetone with 5- hydroxymethylfurfural in aqueous phase at 70C without deactivation.
The coating of MgO with TEOS produces new basic species which are suggested to be silica-magnesia or magnesium silicates on the MgO surface that increase the catalytic activity.