Process for producing glycerin
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United States of America Patent
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-
Mar 15, 2005
Grant Date -
Mar 25, 2004
app pub date -
Sep 23, 2003
filing date -
Jul 31, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for producing glycerin is comprised of the steps of: (1) contacting a fat with water at a temperature and pressure sufficient to produce hydrolyzed fat and a sweet water stream comprised of water, fat and glycerin; (2) introducing the sweet water stream into a vertical constant temperature zone and heating the sweet water stream to a temperature of at least 200.degree. C.; (3) allowing sweet water stream of step (2) to separate into a top layer comprised of fat and a bottom layer comprised of glycerin and water while maintaining a temperature of the two layers of at least about 200.degree. C. for a period of time sufficient to deactivate the prions; (4) separating the glycerin from the water.
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