Corn stillage oil derivatives
First Claim
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1. A method for producing a blown corn stillage oil, the method comprising:
- (a) obtaining a corn stillage oil having a viscosity of from 25 to 35 cSt at 40°
C.;
(b) heating the corn stillage oil to at least 90°
C. for a sufficient period of time to obtain a corn stillage oil derivative; and
(c) passing air through the corn stillage oil derivative to produce a blown corn stillage oil.
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Abstract
Corn stillage oil derivatives having values for Gardner color of 10 or less and methods for making the corn stillage oil derivatives are disclosed. In one aspect, the corn stillage oil derivative comprises a heat bleached corn stillage oil. Preferably, the heat bleached corn stillage oil has a value for Gardner color of from 4 to 8. In another aspect, the corn stillage oil derivative comprises a blown corn stillage oil. Preferably, the blown corn stillage oil has a value for Gardner color of from 5 to 8.
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Citations
20 Claims
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1. A method for producing a blown corn stillage oil, the method comprising:
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(a) obtaining a corn stillage oil having a viscosity of from 25 to 35 cSt at 40°
C.;(b) heating the corn stillage oil to at least 90°
C. for a sufficient period of time to obtain a corn stillage oil derivative; and(c) passing air through the corn stillage oil derivative to produce a blown corn stillage oil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for producing a blown-corn stillage oil, the method comprising:
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(a) obtaining a vacuum distilled corn stillage oil having a viscosity of from 25 to 35 cSt at 40°
C.;(b) heating the corn stillage oil to at least 90°
C. for a sufficient period of time to obtain a corn stillage oil derivative; and(c) passing air through the corn stillage oil derivative to produce a blown corn stillage oil. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for producing a blown-corn stillage oil, the method comprising:
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(a) obtaining a corn stillage oil having a Gardner color of at least 12; (b) heating the corn stillage oil to at least 90°
C. for a sufficient period of time to obtain a corn stillage oil derivative; and(c) passing air through the corn stillage oil derivative to produce a blown-corn stillage oil having a Gardner color of from 5 to 8. - View Dependent Claims (18, 19, 20)
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Specification