Dispersion of Organic Phase by Agitation in a n-Hexane/p-TSA Aqueous Solution System

n-헥산/p-TSA 수용액계에서 교반에 의한 유기상의 분산

  • Kim, Tae-Ok (Department of Chemical Engineering, College of Engineering, Myong Ji University) ;
  • Chun, Jong-Han (Industrial Safety Training Institute, Korea Industrial Safety Corporation)
  • 김태옥 (명지대학교 공과대학 화학공학과) ;
  • 전종한 (한국산업안전공단 산업안전교육원)
  • Received : 1991.05.04
  • Published : 1991.09.30

Abstract

The effect of agitation on the dispersion of organic phase was investigated in an immiscible liquid system (n-hexane/40 wt % p-TSA aqueous solution). Four different types of six-bladed turbine impellers were used : a flat blade type and three screen blade types. The experimental results showed that the extent of dispersion of organic phase at the same agitation speed was decreased in the order of flat blade, 60 mesh, 40 mesh, and 20 mesh screen blades. Otherwise, it was increased with increasing the concentration of TBA as a surfactant agent and with decreasing volume fraction of organic phase. Also, the minimum agitation speed for a complete dispersion was increased in the order of flat blade, 60 mesh, 40 mesh, and 20 mesh screen blades. However, the minimum power consumption did not vary significantly. In this condition, the relationship between Power number and Reynolds number was expressed as $N_p=a\;N_{Re}{^b}$, where the values of constant a and constant b were ranged 2200~4100 and -0.69~-0.63 respectively.

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