Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Separation of a Sugar Mixture by Emulsion Liquid Membranes

에멀젼형 액막법에 의한 당 혼합물의 분리

  • Lee, Sang Cheol (School of Materials Science & Chemical Engineering, Kunsan National University)
  • 이상철 (군산대학교 재료화학공학부)
  • Received : 2005.01.24
  • Accepted : 2005.03.21
  • Published : 2005.06.30
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Abstract

Separation of fructose and glucose was performed using emulsion liquid membranes with a mixture of an organoboronic acid and a quaternary ammonium salt as a carrier in a batch reactor. In order to find a carrier and an optimal experimental condition suitable to the sugar separation, extraction of each sugar was carried out independently. The effect of various experimental variables, such as initial concentration of sugar in the feed phase, type of organoboronic acids, and w/o ratio, on the sugar separation was investigated, and the concentrations of sugars in each aqueous phase were analyzed. The ratio of degree of extraction of fructose to that of glucose was very high, but the concentration of fructose in the receiving phase was not too high. Therefore, a stronger stripping agent in the receiving phase was required for development of a practical ELM system suitable to the sugar separation.

유기 붕산계 화합물과 4차 암모늄염의 혼합물을 추출제로 사용하여 에멀젼형 액막법에 의한 과당과 포도당의 분리가 회분식 반응기에서 이루어졌다. 당 분리를 위해 적합한 추출제와 최적의 실험조건을 찾기 위하여 각 당에 대하여 독립적으로 추출 실험이 수행되었다. 원료상의 당 농도, 붕산계 화합물 종류와 w/o 비와 같은 여러 변수들이 과당과 포도당 분리에 미치는 영향이 조사되었으며, 이때 원료상과 회수상에서의 최종 당 농도가 분석되었다. 원료상에서의 과당/포도당 추출률 비는 매우 높았지만, 회수상에서의 당 농도는 높지 않았다. 상업적인 당 분리를 위한 에멀젼형 액막 시스템 개발을 위해 보다 회수상으로 과당의 역추출을 강하게 추진할 수 있는 염을 찾는 것이 요구되었다.

Keywords

Acknowledgement

Supported by : 에너지관리공단

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