Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 14, 2009
Patent Application Number
10939498
Date Filed
September 14, 2004
Patent Primary Examiner
Patent abstract
A process for rectificatively separating an acrylic acid-containing liquid, by withdrawing an acrylic acid-rich stream from the rectification column above the feed point and polymerization-inhibiting the upper section of the rectification column by means of diacrylic acid.
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