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액적의 합체와 혼합조-분리조에서의 분리

Coalescence of Liquid Droplets and Separation in a Mixer-Settler (Part 2: Continuous Experiments)

김성석 최창균

Kim SS Choi CK

HWAHAK KONGHAK, April 1988, 26(2), 128-134(7), NONE

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Abstract

혼합조-분리조에서 연속실험을 통하여 액-액계의 혼합물의 분리특성을 조사하였다. 회분계에서의 분리현상은 연속계의 분산대에서의 분리와 유사한 거동을 보이기 때문에, 기존의 관계식으로 합체기구를 고찰하였다. 본 실험 범위내에서는 액적의 합체가 충돌이 지배적임을 시사하였다. 또한 회분계와 연속계의 분리 성능을 연결할 수 있는 다음과 같은 상관식을 제시하였다.
ΔH/d_o = 310（(Q/A）/U_Φ)^1.40

The study on liquid-liquid separation characteristics in continuous mixer-settler systems was investigated experimentally. Since separation phenomena in a batch system was similar to those in the dispersion band in a continuous system, the coalescence mechanism was investigated by existing correlations. In the present experimental range it may be stated that drop coalescence was caused mainly by drop collisions. Finally, the following correlation to connect the separation performance of a batch system with that of a continuous system was generated:
ΔH/d_o = 310（(Q/A）/U_Φ)^1.40

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