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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> 6-(poly-substituted aryl)-4-aminopicolinates and their use as herbicides

> Supported catalyst for the selective hydrogenation of alkynes and dienes
~ 00533