Process for removing free fatty acids from fats and oils of biological origin or their steam distillates
First Claim
1. A process for removing free fatty acids from fats or oils of biological origin by extracting the free fatty acids with a mixture of basic organic nitrogen compounds and water as extraction medium at a temperature below the boiling point of the organic nitrogen compounds, where the content of the basic organic nitrogen compounds in the extraction medium is at least about 20% by weight and at most about 60% by weight, and the boiling point of the basic organic nitrogen compound(s) used is equal to or above the boiling point of water and below the boiling point of the fatty acids to be extracted.
0 Assignments
0 Petitions
Accused Products
Abstract
A method for removing free fatty acids from fats or oils of biological origin or their steam distillates by extracting the free fatty acids with a mixture of basic organic nitrogen compounds and water as an extraction medium at a temperature below the boiling point of the organic nitrogen compounds. The content of the basic organic nitrogen compounds in the extraction medium is 20-30% by weight. In this manner, the formation of a viscous soapstock which is difficult to remove is prevented. The boiling point of the basic organic nitrogen compounds used is the same as or above boiling point of water and below the boiling point of the fatty acids to be extracted in order to enable simple recovery of the extraction medium.
10 Citations
22 Claims
- 1. A process for removing free fatty acids from fats or oils of biological origin by extracting the free fatty acids with a mixture of basic organic nitrogen compounds and water as extraction medium at a temperature below the boiling point of the organic nitrogen compounds, where the content of the basic organic nitrogen compounds in the extraction medium is at least about 20% by weight and at most about 60% by weight, and the boiling point of the basic organic nitrogen compound(s) used is equal to or above the boiling point of water and below the boiling point of the fatty acids to be extracted.
-
4. The process for removing free fatty acids from steam distillates of fats or oils of biological original comprising:
-
extracting the free fatty acids with a mixture of basic organic nitrogen compounds and water as extraction medium at a temperature below the boiling point of the organic nitrogen compounds, wherein the content of the basic organic nitrogen compounds in the extraction medium is at least about 40% by weight and at most about 60% by weight, and the boiling point of the basic organic nitrogen compound(s) used is equal to or above the boiling point of water and below the boiling point of the fatty acids to be extracted; and
adding from 1 to 4 parts, of alkane and/or of an ester, to 1 part of the liquid homogeneous mixture obtained in the preceding extraction step. - View Dependent Claims (14, 15, 16, 18, 19, 20, 21, 22)
-
Specification