C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 51/42 (2006.01) C07C 67/02 (2006.01) C07C 67/48 (2006.01) C11C 1/00 (2006.01)
Patent
CA 2648215
A process for separating a blend of saturated and unsaturated fatty acids or saturated and unsaturated fatty acid alky esters into a first fraction enriched with the saturated fatty acids or saturated fatty acid alkyl esters and a second fraction enriched with unsaturated fatty acids or unsaturated fatty acid alkyl esters. When separating fatty acids, the process includes the steps of (a) saponifying a blend of long chain saturated and unsaturated fatty acids to form free fatty acids, (b) complexing the free fatty acids with urea, and (c) separating the urea complexed free fatty acids into a first fraction enriched with saturated free fatty acids and a second fraction enriched with unsaturated free fatty acids. When separating fatty acid alkyl esters, the process includes the steps of (i) complexing the fatty acid alkyl esters with urea, and (ii) separating the urea-complexed fatty acid alkly esters into a first fraction enriched with saturated fatty acid alkyl esters and a second fraction enriched with unsaturated fatty acid alkyl esters.
L'invention concerne un procédé de séparation d'un mélange d'acides gras saturés et insaturés ou d'esters alkyliques d'acides gras saturés et insaturés en une première fraction enrichie en acides gras saturés ou en esters alkyliques d'acides gras saturés, et en une seconde fraction enrichie en acides gras insaturés ou en esters alkyliques d'acides gras insaturés. Lors de la séparation des acides gras, le procédé comporte les étapes consistant à : (a) saponifier un mélange d'acides gras saturés et insaturés à longue chaîne pour former des acides gras libres ; (b) former des complexes entre les acides gras libres et l'urée ; et (c) séparer les acides gras libres formant des complexes avec l'urée en une première fraction enrichie en acides gras libres saturés et en une seconde fraction enrichie en acides gras libres insaturés. Lors de la séparation des esters alkyliques d'acides gras, le procédé comporte les étapes consistant à : (1) former des complexes entre les esters alkyliques d'acides gras et l'urée, et (2) séparer les esters alkyliques d'acides gras formant des complexes avec l'urée en une première fraction enrichie en esters alkyiques d'acides gras saturés et en une seconde fraction enrichie en esters alkyliques d'acides gras insaturés.
Peterson Roger
Wanasundara Udaya Nayanakantha
Gowling Lafleur Henderson Llp
Pos Pilot Plant Corporation
Soymor
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