Preparation and Characterization of Some Solid Acidic Catalysts and Their Catalytic Application

The objective of this study was to prepare dibutylphthalate via esterification reaction in the presence of some solid acidic catalysts. the catalysts were some transition metal polyoxometalates as effective and green catalysts with keggin; k3[pmo6w6o40], k3[pmo12o40], k4[simo12o40], k4[siw12o40], na7[pw11o39], wells-dawson; k6[p2w18o62],and preyssler structures; k14[nap5w30o110]. in the first step, the above-mentionedpolyoxometalates were prepared, and then characterized. consequently, the reactivity ofthose catalysts have been studied and compared in the preparation of dibutylphtalate. amongvarious acidic catalysts which were used, k3[pmo6w6o40] showed the best reactivity andefficiency compared to the other catalysts.