Patent ID: 6547987
Filing Date: 2003-04-15
Classification: C11B

Abstract:
A solvent for extracting oil from an oil bearing material so as to form an extracted oil comprised of greater than 95% by weight triglycerides and other non-polar constituents, with said solvent having a polarity no greater than about 0 and a viscosity ranging between about 0.3 centipoise and about 2.6 centipoise, whereby the triglycerides are miscible in said solvent at a temperature ranging between about 35Â° C. and about 55Â° C. and after extraction of the triglycerides said solvent and the triglycerides form a miscella, and at a temperature ranging between about 15Â° C. and about 25Â° C., said miscella will form distinct solvent and oil layers that can be separated, said solvent comprising:(a) an amount of hexane; and, (b) an amount of decafluoropentane (DFP), with said decafluoropentane added in an amount equal to about 60% to 70% by volume of said total solvent.