Method for preparing fatty acid esters with alcohol recycling
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United States of America Patent
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Dec 13, 2011
Grant Date -
Feb 25, 2010
app pub date -
Jan 10, 2008
filing date -
Jan 10, 2007
priority date (Note) -
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Abstract
A method produces fatty acid esters by transesterification of fats and oils with the aid of an alcohol, at a high pressure and temperature. Unreacted alcohol is separated inline from the reaction mixture and continuously recycled into the transesterification process. The separation is performed by obtaining a vapour phase and higher density phases of the reaction mixture and concentrating the alcohol in the vapour phase.
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