Esterification of palmitic acid with methanol over template-assisted mesoporous sulfated zirconia solid acid catalyst

Add time:08/23/2019    Source:sciencedirect.com

The esterification of palmitic acid with methanol was studied over mesoporous sulfated zirconia (SZ) solid acid catalyst, prepared by using CTAB cationic surfactant as a template. The effect of various reaction parameters has been studied. The catalyst showed an excellent activity with 88–90% yield of methyl palmitate at 60 °C after 5–7 h. The reaction follows pseudo-first order kinetics under the reaction conditions studied with a reaction rate of 48.67 mmol h−1 g−1 and turnover frequency of 6.96 h−1. It is noteworthy that SZ catalyst showed comparable activity to conventional Brönsted acids namely H2SO4 and p-TSA; as well as it exhibited higher activity than various other heterogeneous catalysts such as zeolites, ion-exchange resins and acid clay.

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