METHOD FOR PREPARING HIGH-PURIFIED UNSATURATED FATTY ACIDS

摘要

A method for manufacturing a highly pure unsaturated fatty acid is provided to mass-produce the highly pure unsaturated fatty acid with a simple and efficient process by removing the saturated fatty acid from the free fatty acid. A method for manufacturing a highly pure unsaturated fatty acid comprises the steps of: (a) preparing pre-activated urea by drying the aqueous urea solution with a vacuum spray dryer; (b) injecting the free fatty acid obtained by hydrolyzing vegetable oil in a reactor; (c) injecting and mixing the pre-activated urea prepared in the (a) step in the reactor of (b) step; (d) removing the saturated fatty acid by filtering the mixture of (c) step; and (d) distilling the free fatty acid filtered in the (d) step.