Application of a Ternary Phase Diagram to the Phase Separation of Oil-in-Water Emulsions Using Isopropyl Alcohol

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• 作者：Youngmee Tiffany Jung (1)
  Levente L. Diosady (1)
  
• 关键词：Aqueous extraction processing ; Demulsification ; Mustard seed oil emulsion ; Ternary phase diagram
• 刊名：Journal of the American Oil Chemists' Society
• 出版年：2012
• 出版时间：December 2012
• 年：2012
• 卷：89
• 期：12
• 页码：2127-2134
• 全文大小：415KB
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• 作者单位：Youngmee Tiffany Jung (1)
  Levente L. Diosady (1)
  
  1. Department of Chemical Engineering, University of Toronto, 200 College Street, Toronto, ON, M5S 3E5, Canada
  
• ISSN：1558-9331

文摘

The oil-in-water emulsion formed during an aqueous extraction of yellow mustard seed flour was destabilized using isopropyl alcohol (IPA) in a four stage extraction process, with concurrent recovery of oil and water in separate phases. The emulsion was extracted using two different approaches: phase separation extraction (PSE) that used fresh IPA as the extraction solvent at each stage, and phase separation extraction with recycle (PSER) that reused the extracted water-rich phase, containing IPA, as the extraction solvent. Extraction processes by both approaches were modeled by the ternary liquid phase diagram of IPA, canola oil and water to characterize the extraction progress. PSER resulted in improved oil–water separation and IPA usage efficiency than PSE, but achieved only 84.0?% oil recovery, compared to 92.3?% by PSE. The ternary diagram of IPA, canola oil and water offered good approximation of the oil and water separation behavior of PSE and PSER by closely predicting the compositions of the separated phases; however, the weight ratio of the separated phases were not as closely predicted.