Purification of acetonitrile by a distillative recovery/ion exchange resin treatment process
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United States of America Patent
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Feb 17, 2009
Grant Date -
Sep 9, 2004
app pub date -
Aug 26, 2003
filing date -
Apr 10, 1996
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Abstract
A process of producing HPLC grade acetonitrile (UV cutoff<190) comprising a multistep distillation under reflux conditions followed by acidic ion exchange resin treatment to remove essentially all impurities from the acetonitrile.
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