Impurities separation by distillation
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United States of America Patent
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-
Nov 12, 2002
Grant Date -
Jan 3, 2002
app pub date -
Aug 23, 2001
filing date -
Mar 31, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A distillation procedure is provided for the separation of impurities from organic materials such as glycols and glycol ethers whereby a liquid stripping component is interfaced into a distillation column with or below the organic material introduction, heat being provided by a reboiler, the stripping component and impurities being removed overhead.
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