Solvent and method for extraction of triglyceride rich oil
First Claim
1. 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 35°
- C. and about 55°
C and after extraction of the triglycerides said solvent and the triglycerides form a miscella at a temperature ranging between about 15°
C. and about 25°
C., said miscella will form distinct solvent and oil layers that can be separated, said solvent comprising;
(a) an amount of a low molecular weight hydrocarbon having a viscosity of less than 2.6 centipoise; and
, (b) a fluorocarbon solvent.
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Abstract
The present invention relates to a solvent for use in extracting oil from an oil bearing material, such as soybeans, with the solvent resulting in the selective extraction of a triglyceride rich oil, which contains 95% or greater triglycerides and non-polar constituents, with the solvent comprised of a hydrocarbon, preferably hexane, and a fluorocarbon, so that the solvent has a viscosity less than 2.6 centipoise and a polarity of less than 0.1. The present invention also relates to a method of using the solvent to extract the triglyceride rich oil, with the method including preferably extracting the oil at a temperature ranging between 35° C. and 55° C., and then preferably cooling resulting miscella to a temperature ranging between 15° C. and 25° C.
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Citations
30 Claims
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1. 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 35°
- C. and about 55°
C and after extraction of the triglycerides said solvent and the triglycerides form a miscella at a temperature ranging between about 15°
C. and about 25°
C., said miscella will form distinct solvent and oil layers that can be separated, said solvent comprising;
(a) an amount of a low molecular weight hydrocarbon having a viscosity of less than 2.6 centipoise; and
,(b) a fluorocarbon solvent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30)
- C. and about 55°
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15. A solvent for extracting soybean oil from soybeans so that an extracted soybean oil is obtained comprised of at least 95% by weight triglycerides, said solvent comprising:
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a. an amount of hexane; and
,b. an amount of fluorocarbon, with said fluorocarbon added in an amount equal to about 60% to 70% by volume of said total solvent.
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16. A solvent for extracting oil from an oil bearing material so as to form an extracted oil comprised of greater than 95% by weight non-polar constituents, with said solvent having a polarity no greater than about 0 and a viscosity less than about 2.6 centipoise, whereby the non-polar constituents are miscible in said solvent and after extraction of the non-polar constituents, said solvent and the non-polar constituents form a miscella, said solvent comprising:
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(a) an amount of a low molecular weight hydrocarbon; and
,(b) a non-polar halogenated solvent.
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17. A method of using a fluorocarbon to extract oil from an oil bearing material, said method comprising:
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(a) contacting the oil bearing material with an amount of a fluorocarbon solvent to form a miscella whereby the oil is miscible in said solvent, wherein said fluorocarbon solvent is comprised of a hydrocarbon and said fluorocarbon, with said fluorocarbon added in an amount sufficient to cause said solvent to have a polarity equal to or less than 0;
(b) separating said miscella from the oil bearing material;
(c) cooling said miscella to a temperature sufficient to form distinct oil and solvent layers; and
,(d) treating said layers so as to separate said oil from said solvent.
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23. A method for extracting oil from an oil bearing material so as to form an oil product comprised of greater than 95% triglycerides and other non-polar constituents, said method comprising:
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(a) forming a solvent comprised of an amount of a low molecular weight hydrocarbon having a viscosity of less than 2.6 centipoise and a non-polar fluorocarbon, with said solvent having a polarity no greater than about 0 and a viscosity ranging between about 0.3 and about 2.6 centipoise;
(b) contacting said solvent with the oil bearing material at a temperature sufficient so that the triglycerides and the other non-polar constituents will be miscible in said solvent, for a time sufficient to extract an amount of oil found in the oil bearing material, thereby forming a miscella;
(c) separating said miscella from the oil bearing material;
(d) cooling said solvent and oil composition to a temperature sufficient to form distinct oil and solvent layers; and
,(e) separating said oil from said solvent.
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Specification