The Effect of Nitrate Catalysts in Transesterification Reaction between Dimethyl Phthalate and Ethylene Glycol

디메틸프탈레이트와 에틸렌글리콜의 에스테르 교환반응에서 질산염 촉매의 영향

Transesterification reaction between dimethyl phthalate and ethylene glycol was kinetically investigated in the presense of various metal nitrate catalysts at $170^{\circ}C$. The reaction rates measured by the amount of distilled methanol from the reaction vessel. The transesterification reaction was carried out under the first order conditions respect to the concentration of dimethyl phthalate and catalyst, respectively. The over all order was 2nd. By Arrhenius plot, the activation energy was calculated as 17.4kcal/mole and 17.2kcal/mole on the transesterification reaction with zinc nitrate and lead nitrate, respectively. Apparent rate constant, k' was appeared linear about concentration of catalyst.