Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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The Stability of Liquid Membrane in the Extraction of the Zn Component by Liquid Surfactant Membrane Process

유화형 액막법에 의한 Zn 성분의 추출시 액막의 안정성

  • Oh, Chi-Hoon (Dept. of Chem. Eng., College of Eng., Dankook Univ.) ;
  • Hwang, Jai-Suk (Dept. of Environmental Management, Shinheung Junior College) ;
  • Shim, Jae-Woo (Dept. of Chem. Eng., College of Eng., Dankook Univ.) ;
  • Lee, Chul-Tae (Dept. of Chem. Eng., College of Eng., Dankook Univ.)
  • 오치훈 (단국대학교 공과대학 화학공학과) ;
  • 황재석 (신흥전문대학 환경관리과) ;
  • 심재우 (단국대학교 공과대학 화학공학과) ;
  • 이철태 (단국대학교 공과대학 화학공학과)
  • Received : 1997.04.01
  • Accepted : 1997.06.10
  • Published : 1997.08.10
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Abstract

The stability of liquid membrane in the extraction process was investigated through the extraction of the Zn component by using W/O/W emulsion type liquid surfactant membrane which was $D_2EHPA-Kerosene-Span$ $80-H_2SO_4$ system. The highest stability for liquid membrane through the Zn extraction process was obtained under the following conditions. That conditions were that span 80 concentration, as surfactant, of 2~3 vol.%;$D_2EHPA$ concentration, as extractant, of 5~7 vol.%;paraffin oil concentration, as membrane strengthening agent, of 10 vol.%;emulsion volume ratio to the external aqueous phase volume of 0.1, and internal aqueous phase volume ratio to the organic phase volume of 1.0.

유화형 액막을 이용하여 $D_2EHPA-Kerosene-Span$ $80-H_2SO_4$계에서 Zn 성분의 추출시 액막의 안정성에 영향을 미치는 에멀젼의 파괴, swelling 현상 및 에멀젼의 morphology를 조사하였다. Zn 성분의 추출시 액막의 안정성에 대한 최적 조건은 계면활성제 Span 80의 농도 2~3 vol.%, 추출담제 $D_2EHPA$의 농도 5~7 vol.%, 막강화제 paraffin oil의 농도 10 vol.% 였으며, 외부수용액에 대한 에멀젼의 비 0.1, 유기상에 대한 내부수용액의 비는 1.0이 적절하였다.

Keywords

Acknowledgement

Supported by : 한국과학재단

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