Applied Chemistry for Engineering (공업화학)
- Volume 5 Issue 1
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- Pages.121-126
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- 1994
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- 1225-0112(pISSN)
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- 2288-4505(eISSN)
Extraction of Acetic Acid by Aliphatic Amino Extractants
지방족 아민 추출제에 의한 초산의 추출
- Lee, Han-Seob (Dept. of Chem. Eng., College of Eng., Myong Ji Univ.)
- 이한섭 (명지대학교 공과대학 화학공학과)
- Received : 1993.08.04
- Accepted : 1993.10.29
- Published : 1994.02.01
Abstract
To elucidate the effect on the reactive extraction of acetic acid, various carriers and modifiers were investigated. Carriers used were secondary and tertiary amines and solvation extractant. Diluent was n-butylacetate. Modifiers were 4-nonylphenol, TBP(Tti-n-butyl phospate) and isodecanol. Besides the effect of temperature and pH in aqueous phase were studied. The mixture of 50% tri-n-octyl/n-decylamine tertiary amine, gave higher degree of extraction and selectivity than other extractants in the extraction of acetic acid. It was found that 4-nonylphenol as modifier fairly good. The degree of extraction was higher with decreasing the pH in aquous phase and the temperature of extraction system.
초산의 반응추출에 미치는 영향을 규명하기 위하여 추출제로 2급과 3급 아민 및 용매화 추출제, 용매로 n-butylacetate, modifier로 4-nonylphenol, TBP 및 isodecanol을 이용하였다. 그외에 수용액상의 pH와 온도의 영향을 연구하였다. 실험결과 초산의 추출에서 3급 아민인 tril-n-octyl과 tri-n-decylamine의 50% 혼합 추출제인 MODA가 추출도 및 선택도에서 가장 좋았다. Modifier로서는 4-nonylphenol이 우수하였다. 이외에도 수용액의 pH와 추출계의 온도가 낮을수록 추출도가 높았다.
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