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아민추출제를 이용한 반응추출에서 숙신산의 분리특성

Separation Characteristics of Succinic Acid in Reactive Extraction by Using Amine Extractant

홍연기 홍원희^†

Yeon Ki Hong Won Hi Hong^†

한국과학기술원 화학공학과, 대전 305-701

Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusong-gu, Taejon 305-701, Korea

whhong@mail.kaist.ac.kr

HWAHAK KONGHAK, April 2000, 38(2), 186-190(5), NONE

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Abstract

최근들어 숙신산은 젖산과 더불어 생분해성 고분자의 원료물질로서 주목받고 있다. 본 연구에서는 3차 아민을 희석화해서 용해시킨 추출제를 이용한 반응추출을 통하여 숙신산을 분리하였다. TPA(Tripropylamine)의 농도, 희석제의 종류 그리고 3차 아민의 사슬길이에 따른 분배계수의 변화를 고찰하였다. 추출능은 희석제의 극성, 유기상에서의 TPA의 농도 그리고 아민의 사슬길이에 따라 증가하였다. 또한 유기상으로 동반 추출되는 물에 의해 숙신산의 용해도가 증가함을 알 수 있었다.

Succinic acid has recently been drawing much interest as a raw material for biodegradable polymer. In this study succinic acid was separated by reactive extraction with tertiary amines dissolved in various diluents. Distribution coefficients were determined as the function of TPA(tripropylamine) concentrations, ciluents, and chain length of tertiary amines. The extraction capacity increased with the polarity of diluents, the concentration of TPA in organic phase and the chain length of amines. Furthermore, the coextracted water into the organic phase enhanced the solubility of succinic acid into organic phase.

Keywords

Succinic Acid Reactive Extraction Amine Polarity Coextracted Water

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