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Solid acid catalyst 15wt%WO3/SnO2 was synthesized and loaded with 15wt%SO4. The obtained catalyst was calcined at 400, 500, 650 and 800°C. The prepared catalysts were characterized by TG-DTA, XRD, FTIR and N2 adsorption at −196°C. The surface acidity was measured by non aqueous potentiometric titration and FT-IR spectra of chemisorbed pyridine. The catalytic performance was evaluated on the esterification...
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