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Received June 28, 2012
Accepted July 29, 2012
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액-액 교반조내에서의 물질이동용량계수 및 액적경의 특성
Characteristic of Mass Transfer Volumetric Coefficient and Sauter Mean Diameter in a Liquid-Liquid Agitated Vessel
경북대학교 나노소재공학부, 742-711 경북 상주시 가장동 386
School of Nano & Materials Science and Engineering, Kyungpook National University, 386 Gajang-dong, Sangju, Gyeongbuk 742-711, Korea
Korean Chemical Engineering Research, October 2012, 50(5), 913-922(10), 10.9713/kcer.2012.50.5.913 Epub 2 October 2012
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Abstract
환경 및 화학공업에서 액-액 교반조내의 특성을 파악하는 일은 매우 중요하다. 액적 부근의 물질이동용량계수 kLa와 Sauter 평균경 d32은 에스테르의 알칼리 가수분해반응을 이용하여 임펠러 부착위치나 액높이를 변화시켜 측정하였다. 그 결과 아래와 같은 이들의 양호한 상관식을 얻었다. d32 = 0.270 (σ0.6/ρ0.2P0.4Vi) kLa = 0.49(6φDA/d232)(PVd432/ρv3)0.193 SC1/3
Grasp of characteristics within liquid-liquid agitated vessel are very important to environment and chemical industry. Mass transfer volumetric coefficient and the Sauter mean diameter of near the droplet were measured by varying the impeller position and liquid height using the alkaline hydrolysis reaction of esters. As a result, following their good correlation was obtained. d32 = 0.270 (σ0.6/ρ0.2P0.4Vi) kLa = 0.49(6φDA/d232)(PVd432/ρv3)0.193 SC1/3
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References
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Asai S, Konishi Y, Sasaki Y, J. Chem. Eng. Japan., 21(2), 107 (1988)
