Patent ID: 8383847
Filing Date: 2013-02-26
Classification: C11C

Abstract:
1. A process for the enrichment of methyl ricinoleate from castor oil methyl ester and the said process comprising steps of: (a) mixing the castor oil methyl esters with refined vegetable oil in a ratio of 1:1 to 1:3 to obtain a feed, (b) subjecting the above said feed to liquid-liquid extraction by using an aqueous polar solvent in a ratio of 1:1 to 10:1 (w/w), at a temperature of 10 to 30° C. to obtain an extract-1 and a raffinate-1, (c) desolventizing the above said extract-1, under reduced pressure, followed by drying to obtain the resultant enriched methyl ricinoleate (solute-1) and recovering the solvent for further use, (d) further subjecting the raffinate-1 obtained in step (b) with the an anhydrous polar solvent, at a temperature in the range of 45 to 60° C. to obtain an extract-2 and raffinate-2, followed by desolventization of the above said extract-2, under reduced pressure, to obtain the solute-2 containing recovered methyl esters with minor content of methyl ricinoleate and recycling the recovered solvent to step (d) for further use.