PROPİYONİK ASİTİN İZOBUTİL ALKOL İLE AMBERLYST 36 VE AMBERLYST 70 KATALİZÖRLERİ VARLIĞINDA ESTERLEŞME KİNETİĞİ

The esterification of propionic acid with isobutyl alcohol has been studied in a batch reactor in the presence of Amberlyst 36 and Amberlyst 70 catalysts. Reaction parameters applied in this study are speed of agitation (500-1000 rpm), particle size of catalyst (400-600 µm, 600+ µm), temperature (318-348 K) and catalyst loading (4-12 g-dry resin/L). A pseudo-homogeneous kinetic model was derived and all thermodynamic and kinetic parameters were calculated. Forward reaction rate constant for Amberlyst 36 and Amberlyst 70 determined as follows: k_1=160171 exp⁡((-56689)/RT) (L mol-1 min-1) k_1=293314 exp⁡((-57292)/RT) (L mol-1 min-1) In a comparison of the two catalysts used in this study, experimental results showed that Amberlyst 70 is more effective than Amberlyst 36.