화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.2, 230-237, April, 1994
Export Citation
액-액 불균일계에서 상이동촉매의 반응속도론 해석
Kinetics in Phase Transfer Catalysis with Heterogeneous Liquid-Liquid System
박상욱, 문진복, 황경선
초록
Aliquat 336 상이동촉매에 의한 n-butyl acetate의 알칼리 가수분해반응을 액-액 불균일 반응계로 한 반응기구를 준1차반응 모델, 계면반응 모델 및 본체반응 모델로 나타내어 복잡한 액-액 불균일계 반응을 간단히 취급할 수 있었다. 분산교반조를 사용하여 측정한 반응전화율로부터 준1차반응 모델과 계면반응 모델 그리고 평면교반조로부터 본체반응 모델로서 반응기구를 각각 설명할 수 있었으며, 각 모델로부터 구한 반응속도상수는 25℃에서 각각 3.1×10-4, 7.3×10-4, 6.6m3/kmol.s이었다.
The reaction conversions of n-butyl acetate in the alkaline hydrolysis of n-butyl acetate by Aliquat 336 were measured in a flat agitator and a dispersion agitator. These measured data was used to analyze the complicated reaction mechanism of the liquid-liquid heterogeneous reaction by a phase transfer catalyst with a pseudo-first order reaction model, a interfacial reaction model and a bulk-body reaction model. The pseudo-firsts order reaction model and the interfacial reaction model could be explained by the experimental data from the dispersion agitator and the bulk-boby reaction model could be explained by those from the flat agitator and the reaction rate constants were 3.1×10-4, 7.3×10-4, 6.6m3/kmol.s from these models at 25℃, respectively.
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