Process for the preparation of biodiesel
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United States of America Patent
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Feb 15, 2011
Grant Date -
Jun 25, 2009
app pub date -
Dec 21, 2006
filing date -
Dec 21, 2005
priority date (Note) -
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Abstract
The present invention relates to a process of preparing fatty alkyl esters (biodiesel), glycerin and lithium soap comprising: a) transesterifying an oil, fat or grease with a solution of lithium base in a monohydric aliphatic alcohol to produce fatty alkyl esters and a lithium alkaline glycerin; b) separating the fatty alkyl esters and the lithium alkaline glycerin and utilizing the lithium alkaline glycerin to saponify fatty alkyl compounds to produce glycerin and lithium soap; and c) optionally, separating the glycerin and lithium soaps.
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