Process for preparing purified fatty acids
AssigneeOleon NV
InventorsFranz-Josef Te Baay, Holger Riemensperger, Ingo Mensink
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Abstract
The present invention relates to a process for preparing fatty acids derived from oils and/pr fats with a phosphorus content below 200 ppm in good yield and with good color and color stability, which process comprises the steps of (A) hydrolytic splitting of degummed oils and/or fats, (B) at least one thermal pre-treatment of a composition comprising crude fatty acids, and (C) high vacuum distillation of the thermally pre-treated composition comprising crude fatty acids.
Claims22
A process for preparing one or more purified fatty acids, said process consisting essentially of:
- (A) hydrolytic splitting of one or more oils and/or fats with a phosphorus content below 200 ppm and separating a composition comprising crude fatty acids,
- (B) heat-treating the composition obtained by step (A) in a thermal pre-treatment unit to provide a composition of crude fatty acids comprising at least 80% by weight (wt %) of free fatty acids, and
- (C) distilling the heat-treated composition obtained by step (B) in a high vacuum distillation unit to obtain a composition of purified fatty acids comprising below 0.5% by weight of monoglyceride,
- wherein the composition that is obtained by the thermal pre-treatment step (B) comprises less monoglycerides than the crude fatty acids obtained by step (A), and with the proviso that the hydrolytic splitting step (A) is not a saponification step.
A process for preparing one or more purified fatty acids, said process consisting essentially of:
- (A) hydrolytic splitting of one or more oils and/or fats with a phosphorus content below 200 ppm and separating a composition comprising crude fatty acids,
- (B) heat-treating the composition obtained by step (A) in a thermal pre-treatment unit to provide a composition of crude fatty acids comprising at least 80% by weight (wt%) of free fatty acids, and
- (C) distilling the heat-treated composition obtained by step (B) in a high vacuum distillation unit to obtain a composition of purified fatty acids comprising below 0.5% by weight of monoglyceride,
- wherein the composition that is obtained by the thermal pre-treatment step (B) comprises less monoglycerides than the crude fatty acids obtained by step (A), and with the proviso that the hydrolytic splitting step (A) is not a saponification step, and wherein one or more additives are used before, during, or after the thermal pre-treatment step (B), but in any case after the hydrolytic splitting step (A) and prior to the distillation step (C), said additives being effective for the removal of color bodies.
Dependencies are inferred from the claim text.