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TitleExtraction of complex lipids from aqueous streams using near-critical dimethylether
Publication TypeConference Paper
Year of Publication2006
AuthorsTallon, S.J., and Catchpole O.J.
Conference NameAIChE Annual Meeting, Conference Proceedings
Date Published2006
AbstractA process for extraction of lipids from aqueous feed streams is presented. The aqueous feed stream is contacted with liquid dimethylether in co-current flow through a static in-line mixer. A separation step follows in which lipids dissolved in the dimethylether phase are removed from the top of the vessel. Non-soluble solids such as proteins and sugars, and any excess water, are recovered in a raffinate phase from the bottom of the vessel. Examples are given for extraction of selected dairy and egg yolk process streams. Extracted lipids include phospholipids, gangliosides, and sphingolipids. Results are given for measurements of dimethylether water phase equilibria, and modeling using the Wong-Sandler mixing rules with the Peng-Robinson EOS. This is an abstract of a paper presented at the 2006 AIChE National Meeting (San Francisco, CA 11/12-17/2006).

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