NO20090388L - Avsyringsfremgangsmate - Google Patents

Avsyringsfremgangsmate

Info

Publication number
NO20090388L
NO20090388L NO20090388A NO20090388A NO20090388L NO 20090388 L NO20090388 L NO 20090388L NO 20090388 A NO20090388 A NO 20090388A NO 20090388 A NO20090388 A NO 20090388A NO 20090388 L NO20090388 L NO 20090388L
Authority
NO
Norway
Prior art keywords
fatty acids
free fatty
membrane
solvent
glycerides
Prior art date
Application number
NO20090388A
Other languages
Norwegian (no)
Inventor
Andrew Timothy Boam
Fui Wen Lim
Original Assignee
Membrane Extraction Tech Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0612845A external-priority patent/GB2441132A/en
Application filed by Membrane Extraction Tech Ltd filed Critical Membrane Extraction Tech Ltd
Priority to NO20090388A priority Critical patent/NO20090388L/en
Publication of NO20090388L publication Critical patent/NO20090388L/en

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  • Separation Using Semi-Permeable Membranes (AREA)
  • Fats And Perfumes (AREA)

Abstract

Det er tilveiebrakt en fremgangsmåte for å redusere innholdet av frie fettsyrer i naturlige oljer ved å kontakte den ubehandlede naturlige oljen med et løsemiddel for å fremstille en fase med oljeprodukt hovedsaklig tømt for frie fettsyrer og en løsemiddelfase rik på frie fettsyrer inneholdende de ekstraherte frie fettsyrer og noe av glyseridene, og å prosessere løsemiddelfasen rik på frie fettsyrer med en membran for å gjenvinne glyseridene fra løsemiddelfasen, omfattende trinnene: (a) å kontakte den ubehandlede naturlige oljen med et ikke-blandbart løsemiddel; (b) å separere fasen med avsyret naturlig olje fra løsemiddelfasen; (c) å tilveiebringe en selektivt gjennomtrengelig membran som har en første overflate og en andre overflate; (d) å overføre en del av løsemidlet og en del av de frie fettsyrene og en mindre del av glyseridene fra den første overflaten til den andre overflaten over membranen ved å kontakte løsemiddelfasen rik på frie fettsyrer med den første overflaten, hvori trykket ved den første overflaten er større enn trykket ved den andre overflaten, og hvori membranen er en selektivt gjennomtrengelig membran slik at membranens avvisning av de frie fettsyrene (RFFA) og glyserider (RGLY) er større enn 0%, og membranens avvisning (RGLY) av glyseridene er minst 5% større enn membranens avvisning (RFFA) av de frie fettsyrene.A method is provided for reducing the content of free fatty acids in natural oils by contacting the untreated natural oil with a solvent to prepare a phase of oil product mainly emptied of free fatty acids and a solvent phase rich in free fatty acids containing the extracted free fatty acids and any of the glycerides, and processing the solvent phase rich in free fatty acids with a membrane to recover the glycerides from the solvent phase, comprising the steps of: (a) contacting the untreated natural oil with an immiscible solvent; (b) separating the phase of acidified natural oil from the solvent phase; (c) providing a selectively permeable membrane having a first surface and a second surface; (d) transferring a portion of the solvent and a portion of the free fatty acids and a minor portion of the glycerides from the first surface to the second surface across the membrane by contacting the solvent phase rich in free fatty acids with the first surface, wherein the pressure at the first the surface is larger than the pressure at the other surface, and wherein the membrane is a selectively permeable membrane such that the membrane's rejection of the free fatty acids (RFFA) and glycerides (RGLY) is greater than 0%, and the membrane's rejection (RGLY) of the glycerides is at least 5% greater than the membrane rejection (RFFA) of the free fatty acids.

NO20090388A 2006-06-28 2009-01-27 Avsyringsfremgangsmate NO20090388L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20090388A NO20090388L (en) 2006-06-28 2009-01-27 Avsyringsfremgangsmate

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0612845A GB2441132A (en) 2006-06-28 2006-06-28 Process for reducing the free fatty acid content of natural oils using a selectively permeable membrane
PCT/NO2007/000242 WO2008002154A2 (en) 2006-06-28 2007-06-28 Deacidification method
NO20090388A NO20090388L (en) 2006-06-28 2009-01-27 Avsyringsfremgangsmate

Publications (1)

Publication Number Publication Date
NO20090388L true NO20090388L (en) 2009-03-25

Family

ID=40786759

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20090388A NO20090388L (en) 2006-06-28 2009-01-27 Avsyringsfremgangsmate

Country Status (1)

Country Link
NO (1) NO20090388L (en)

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