Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Effect of Surfactant on the Separation of Toluene/n-Heptane Mixture by O/W/O Type Emulsion Liquid Membrane

O/W/O형 에멀젼 액체막에 의한 Toluene과 n-Heptane 혼합물의 분리에 있어서 계면활성제의 영향

  • Kim, Tae-Young (Dept. of Environ, Eng., Okchon Provicial College) ;
  • Lee, Ju-Sang (Dept. of Environ, Eng., Okchon Provicial College) ;
  • Choi, Sung-Ok (Dept. of Ind. Chem. Eng., Chungbuk National Univ.) ;
  • Nam, Ki-Dae (Dept. of Ind. Chem. Eng., Chungbuk National Univ.) ;
  • Park, Sang-Chan (Dept. of Environ. Eng., Chungju Nat'l Univ.)
  • 김태영 (충청북도립 옥천대학 환경공업과) ;
  • 이주상 (충청북도립 옥천대학 환경공업과) ;
  • 최성옥 (충북대학교 공과대학 공업화학과) ;
  • 남기대 (충북대학교 공과대학 공업화학과) ;
  • 박상찬 (충주산업대학교 환경공학과)
  • Published : 1999.03.31
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Abstract

In the separation of toluene/n-heptane mixture by the emulsion type liquid membrane in a batch system, the effect of surfactants on the separation factor and membrane stability were studied over the surfactant concentration ranging from 0.1 to 1.5 wt% at the contact time of 5 and 10 minutes and the settling time 5 and 10 minutes. The surfactants used were triethanol amine lauryl sulfate. The separation factor reached its maximum value at the surfactant concentration of 0.5 wt%. It was found that the percentage of membrane breakup reached its minium values and the separation factor showed its maximum value at the surfactant concentration of 0.5 wt%, which confirmed that efficient separation could be effect when emulsion liquid membrane were stable because of low membrane break up.

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