C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 67/02 (2006.01) C07C 67/56 (2006.01) C11B 7/00 (2006.01) C11C 1/00 (2006.01) C11C 3/08 (2006.01) C11C 3/10 (2006.01)
Patent
CA 2099825
"RECOVERY OF POLYUNSATURATED TRIGLYCERIDES FROM AN INTERESTERIFICATION REACTION ZONE" ABSTRACT Polyunsaturated triglycerides are separated from an interesterification reaction product by sequential two stage chromatographic separations wherein triglycerides are separated from saturated fatty acids in the first stage and unsaturated fatty acids are recovered in the second stage for recycle to the interesterification reaction zone. In a preferred embodiment using silica gel in the first stage and silicalite in the second stage as adsorbents and heptanone as desorbent in both stages, triglyceride product is recovered as the first stage raffinate and the unsaturated fatty acid recycleproduct stream is recovered as the raffinate in the second stage. In another embodiment, using silicalite adsorbent in both stages and 2-heptanone in the first stage and acetone in the second stage as the desorbents, saturated fatty acids are removed as the extract in the first stage and triglycerides and unsaturated fatty acids are separated in the second stage as raffinate product and extract product for recycle, respectively.
Macrae & Co.
Uop
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